If you're wondering how to celebrate your child's birthday, you might like the idea of throwing a nursery science show. AT recent times scientific holidays are becoming more and more popular. Entertaining experiences and experiments like almost all children. For them, this is something magical and incomprehensible, which means interesting. The cost of hosting a science show is quite high. But this is no reason to deny yourself the pleasure of watching the astonished children's faces. After all, you can manage on your own, do not resort to the help of animators and holiday agencies.
In this article, I made a selection of simple chemical and physical experiments and experiments that can be done at home without any problems. Everything you need to carry them out is probably in your kitchen or first aid kit. You don't need any special skills either. All you need is a desire and a good mood.
I tried to collect simple but spectacular experiences that will be of interest to children. different ages. For each experiment, I prepared a scientific explanation (not for nothing that I studied to be a chemist!). To explain to the children the essence of what is happening or not is up to you. It all depends on their age and level of training. If the children are small, you can skip the explanation and go straight to the spectacular experience, saying only that they will be able to learn the secrets of such "miracles" when they grow up, go to school and begin to study chemistry and physics. Perhaps this will arouse their interest in studying in the future.
Although I chose the safest experiments, they still need to be taken very seriously. All manipulations are best performed with gloves and a bathrobe, at a safe distance from children. After all, the same vinegar and potassium permanganate can cause trouble.
And, of course, when conducting a children's science show, you need to take care of the image of a mad scientist. Your artistry and charisma will largely determine the success of the event. Transform from ordinary person becoming a funny scientific genius is not at all difficult - all you need to do is ruffle your hair, put on big glasses and a white coat, smear yourself with soot and make an expression corresponding to your new status. This is what a typical mad scientist looks like.
Before putting on a science show on children's holiday(by the way, it can be not only a birthday, but also any other holiday), all experiments should be done in the absence of children. Rehearse that there were no unpleasant surprises later. Few things can go wrong.
Children's experiments can be carried out without a festive occasion - just so that it is interesting and useful to spend time with a child.
Choose the experiences you like the most and write a script for the holiday. In order not to heavily burden children with science, albeit entertaining, dilute the event with fun games.
Part 1. Chemical show
Attention! When conducting chemical experiments, you should be extremely careful.
foam fountain
Almost all children love foam - the more the better. Even kids know how to make it: for this you need to pour shampoo into water and shake it well. But can the foam form by itself without shaking and be also colored?
Ask the children what they think foam is. What is it made of and how can it be obtained. Let them express their guesses.
Then explain that foam is bubbles filled with gas. This means that for its formation, some substance is needed, of which the walls of the bubbles will consist, and a gas that will fill them. For example, soap and air. When soap is added to water and stirred, air enters these bubbles from the environment. But gas can be obtained in another way - in the process of a chemical reaction.
Option 1
- hydroperite tablets;
- potassium permanganate;
- liquid soap;
- water;
- a glass vessel with a narrow neck (preferably beautiful);
- cup;
- a hammer;
- tray.
Statement of experience
- Using a hammer, crush the hydroperite tablets into powder and pour it into a flask.
- Place the flask on the tray.
- Add liquid soap and water.
- Prepare in a glass water solution potassium permanganate and pour it into a flask with hydroperide.
After the solutions of potassium permanganate (potassium permanganate) and hydroperide (hydrogen peroxide) merge, a reaction will begin to occur between them, accompanied by the release of oxygen.
4KMnO 4 + 4H 2 O 2 = 4MnO 2 ¯ + 5O 2 + 2H 2 O + 4KOH
Under the action of oxygen, the soap present in the flask will begin to foam and lick out of the flask, forming a kind of fountain. Due to potassium permanganate, part of the foam will turn pink.
You can see how this happens in the video.
Important: the glass vessel must have a narrow neck. Do not take the resulting foam in your hands and do not give it to children.
Option 2
Another gas, such as carbon dioxide, is also suitable for the formation of foam. You can paint the foam in any color you wish.
For the experiment you will need:
- plastic bottle;
- soda;
- vinegar;
- food coloring;
- liquid soap.
Statement of experience
- Pour into a bottle of vinegar.
- Add liquid soap and food coloring.
- Pour in soda.
Result and scientific explanation
When soda and vinegar interact, a violent chemical reaction occurs, accompanied by the release of carbon dioxide CO 2.
Under its action, the soap will begin to foam and lick out of the bottle. The dye will color the foam in the color you choose.
Merry ball
What's a birthday without balloons? Show the children the balloon and ask how to inflate it. The guys, of course, will answer that by mouth. Explain that the balloon is inflated by the carbon dioxide we exhale. But you can inflate the balloon with them in another way.
For the experiment you will need:
- soda;
- vinegar;
- bottle;
- balloon.
Statement of experience
- Pour a teaspoon of baking soda into the balloon.
- Pour into a bottle of vinegar.
- Put the ball on the neck of the bottle and pour the soda into the bottle.
Result and scientific explanation
As soon as baking soda and vinegar come into contact, a violent chemical reaction will begin, accompanied by the release of carbon dioxide CO 2 . The balloon will begin to inflate before your eyes.
CH 3 -COOH + Na + - → CH 3 -COO - Na + + H 2 O + CO 2
If you take a smiley balloon, it will produce more on the guys greater impression. At the end of the experiment, tie a balloon and give it to the birthday person.
See the video for a demonstration of the experience.
Chameleon
Can liquids change their color? If yes, why and how? Before setting up an experiment, be sure to ask the children these questions. Let them think. They will remember how water is colored when you rinse a brush with paint in it. Is it possible to decolorize the solution?
For the experiment you will need:
- starch;
- alcohol burner;
- test tube;
- cup;
- water.
Statement of experience
- Pour a pinch of starch into a test tube and add water.
- Drop some iodine. The solution will turn into blue color.
- Light the burner.
- Heat the test tube until the solution becomes colorless.
- Pour into a glass of cold water and immerse the test tube into it so that the solution cools down and turns blue again.
Result and scientific explanation
When interacting with iodine, the starch solution turns blue, since this produces a compound dark blue I 2 *(C 6 H 10 O 5) n. However, this substance is unstable and, when heated, again decomposes into iodine and starch. When cooling the reaction is going on in the other direction and we again see how the solution turns blue. This reaction shows reversibility chemical processes and their temperature dependence.
I 2 + (C 6 H 10 O 5) n => I 2 * (C 6 H 10 O 5) n
(iodine - yellow) (starch - clear) (dark blue)
rubber egg
All children know that the eggshell is very fragile and can break from the slightest blow. It would be nice if the eggs didn't beat! Then you wouldn't have to worry about bringing the eggs home when your mom sends you to the store.
For the experiment you will need:
- vinegar;
- raw egg;
- cup.
Statement of experience
- To surprise the kids, you need to prepare for this experience in advance. 3 days before the holiday, pour vinegar into a glass and place a raw chicken egg in it. Leave for three days so that the shell has time to completely dissolve.
- Show the children a glass with an egg and invite everyone to say a magic spell together: “Tryn-dyryn, boom-brown! Egg, become rubber!
- Take out the egg with a spoon, wipe it with a napkin and demonstrate how it can now be deformed.
Result and scientific explanation
Eggshells are made up of calcium carbonate, which dissolves when reacted with vinegar.
CaCO 3 + 2 CH 3 COOH \u003d Ca (CH 3 COO) 2 + H 2 O + CO 2
Due to the presence of a film between the shell and the contents of the egg, it retains its shape. What an egg looks like after vinegar, look at the video.
Secret letter
Children love everything mysterious, and therefore this experiment will surely seem like real magic to them.
Take an ordinary ballpoint pen and write on a piece of paper a secret message from aliens or draw some kind of secret sign that no one but the guys present can know about.
When the children read what is written there, say what it is. big secret and the inscription must be destroyed. And erase the inscription will help you magic water. If you treat the inscription with a solution of potassium permanganate and vinegar, then with hydrogen peroxide, the ink will be washed off.
For the experiment you will need:
- potassium permanganate;
- vinegar;
- hydrogen peroxide;
- flask;
- cotton buds;
- ball pen;
- paper;
- water;
- paper towels or napkins;
- iron.
Statement of experience
- Draw on a piece of paper ballpoint pen drawing or inscription.
- Pour a little potassium permanganate into a test tube and add vinegar.
- Soak a cotton swab in this solution and swipe over the inscription.
- Take another cotton swab, moisten it with water and wash off the resulting stains.
- Blot with a tissue.
- Apply hydrogen peroxide to the inscription and blot again with a napkin.
- Iron with an iron or put under a press.
Result and scientific explanation
After all the manipulations you will receive Blank sheet paper, which will surprise children very much.
Potassium permanganate is a very strong oxidizing agent, especially if the reaction occurs in an acidic environment:
MnO 4 ˉ+ 8 H + + 5 eˉ = Mn 2+ + 4 H 2 O
A strong acidified solution of potassium permanganate literally burns many organic compounds, turning them into carbon dioxide and water. For creating acid environment in our experiment, acetic acid is used.
The product of the reduction of potassium permanganate is manganese dioxide Mn0 2, which has a brown color and precipitates. To remove it, we use hydrogen peroxide H 2 O 2 , which reduces insoluble compound Mn0 2 up good soluble salt manganese(II).
MnO 2 + H 2 O 2 + 2 H + = O 2 + Mn 2+ + 2 H 2 O.
I propose to see how the ink disappears on the video.
The power of thought
Before setting up the experiment, ask the children how to put out the candle flame. They, of course, will answer you that you need to blow out the candle. Ask if they believe you can put out a fire with an empty glass by casting a magic spell?
For the experiment you will need:
- vinegar;
- soda;
- glasses;
- candles;
- matches.
Statement of experience
- Pour soda into a glass and pour vinegar over it.
- Light some candles.
- Bring a glass of soda and vinegar to another glass, tilting it slightly so that the carbon dioxide produced during the chemical reaction flows into the empty glass.
- Carry a glass of gas over the candles, as if pouring them over the flame. At the same time, make a mysterious expression on your face and say some incomprehensible spell, for example: “Chicken-burs, mur-plee! Flame, don't burn anymore!" Children must think it's magic. You will reveal the secret after the enthusiasm.
Result and scientific explanation
When baking soda and vinegar interact, carbon dioxide is released, which, unlike oxygen, does not support combustion:
CH 3 -COOH + Na + - → CH 3 -COO - Na + + H 2 O + CO 2
CO 2 is heavier than air, and therefore does not fly up, but settles down. Thanks to this property, we are able to collect it in an empty glass, and then “pour it” onto candles, thereby extinguishing their flame.
How it happens, look at the video.
Part 2. Entertaining physical experiments
strong jean
This experiment will allow children to look at the usual action for them from the other side. Place an empty wine bottle in front of the children (it is better to remove the label first) and push the cork into it. And then turn the bottle upside down and try to pop the cork out. Of course, you won't succeed. Ask the children if there is any way to get the cork out without breaking the bottle? Let them say what they think about it.
Since the cork cannot be picked up through the neck, it means that one thing remains - to try to push it out from the inside out. How to do it? You can call the genie for help!
The genie in this experiment will be a large plastic bag. To heighten the effect, the package can be painted with colored markers - draw eyes, nose, mouth, pens, some patterns.
So, for the experiment you will need:
- empty wine bottle;
- cork;
- plastic bag.
Statement of experience
- Twist the bag with a tube and put it into the bottle so that the handles are outside.
- Turning the bottle over, ensure that the cork is on the side of the package closer to the neck.
- Inflate the package.
- Gently begin to pull the bag out of the bottle. A cork will come out with it.
Result and scientific explanation
As the bag inflates, it expands inside the bottle, expelling air from the bottle. When we begin to pull out the bag, a vacuum is created inside the bottle, due to which the walls of the bag wrap around the cork and drag it out with them. This is such a strong gin!
To see how this happens, watch the video.
Wrong glass
On the eve of the experiment, ask the children what happens if you turn a glass of water upside down. They will answer that the water will pour out. Say that this happens only with the "correct" glasses. And you have a “wrong” glass from which water does not pour out.
For the experiment you will need:
- glasses with water;
- paints (you can do without them, but this way the experience looks more spectacular; it is better to use acrylic paints - they give more saturated colors);
- paper.
Statement of experience
- Pour into glasses of water.
- Add color to it.
- Moisten the rims of the glasses with water and place a sheet of paper over them.
- Press the paper firmly against the glass, holding it with your hand, turn the glasses upside down.
- Wait for a while until the paper sticks to the glass.
- Remove your hand quickly.
Result and scientific explanation
Surely all children know that we are surrounded by air. Although we do not see him, he, like everything around him, has weight. We feel the touch of air, for example, when the wind blows on us. There is a lot of air, and therefore it presses on the earth and everything that is around. This is called atmospheric pressure.
When we apply paper to a wet glass, it sticks to its walls due to surface tension.
In an inverted glass, between its bottom (now at the top) and the surface of the water, a space is formed filled with air and water vapor. The force of gravity acts on the water, which pulls it down. This increases the space between the bottom of the glass and the surface of the water. At constant temperature, the pressure in it decreases and becomes less than atmospheric. The total pressure of air and water on the paper from the inside is slightly less than the air pressure from the outside. Therefore, water does not pour out of the glass. However, after a while the glass will lose its magical properties and the water will still come out. This is due to the evaporation of water, which increases the pressure inside the glass. When it becomes more than atmospheric, the paper will fall off and the water will pour out. But you can't bring it up to this point. So it will be more interesting.
You can watch the progress of the experiment on the video.
Gluttonous bottle
Ask the children if they like to eat. Do they like to eat glass bottles? Not? Bottles are not eaten? And here they are wrong. They don’t eat ordinary bottles, but magic bottles are not even averse to having a bite.
For the experiment you will need:
- boiled chicken egg;
- a bottle (to heighten the effect, the bottle can be painted or somehow embellished, but so that the children can see what is happening inside it);
- matches;
- paper.
Statement of experience
- Peel off the shell of the boiled egg. Who eats eggs in shell?
- Set fire to a piece of paper.
- Throw the burning paper into the bottle.
- Put the egg on the neck of the bottle.
Result and scientific explanation
When we throw burning paper into the bottle, the air in it heats up and expands. By closing the neck with an egg, we prevent the flow of air, as a result of which the fire goes out. The air in the bottle cools and contracts. A pressure difference is created inside the bottle and outside, due to which the egg is sucked into the bottle.
For now, that's all. However, over time, I plan to add a few more experiments to the article. At home, you can, for example, experiment with balloons. Therefore, if you are interested this topic, bookmark the site, or sign up for updates. When I add something new, I will inform you about it by e-mail. It took me a lot of time to prepare this article, so please respect my work and when copying materials, be sure to put an active hyperlink to this page.
If you have ever done home experiments for children and put on a science show, write about your impressions in the comments, attach a photo. It will be interesting!
Show "" is a script for special events such as: New Year's holiday, Children's birthday, September 1, Science Week at school or Prom schoolchildren younger age . No matter what the event will be dedicated to - "Wonders of Science" is ideal whenever you want to arrange an unusual and fun holiday for children.
This is a holiday for a group of children ranging in size from 5 to 50 people;
are exciting demonstrations, games and science experiments that amaze and entertain young audiences of all ages.
Guys will be able to:
- find out how an egg can be placed in a flask with a narrow neck, without damaging it, and then taken back;
- see how the water in the flasks, as if by magic, changes its color, and find out that, in fact, this is a chemical reaction,
- take a magical shower, and, at the same time, not get wet at all, “build” real factory foam
- "conjure" an ominous fog from dry ice and much more.
The duration of the program is 60 minutes. One instructor takes part in the performance.
New Year's Performance
Show program for the New Year holidays- this is an unusual performance filled with "magic" scientific experiments, New Year's transformations and the expectation of wonderful discoveries. All experiments have New Year theme and festive mood- children will learn how to make magic snow,
- learn about wonderful ways to inflate balloons,
- prepare fantastic New Year crackers,
- see a real festive mini-fireworks!
Forget everything you've seen before! Scientific holidays- it's something fabulous, amazing and very special! AT New Year together! New Year's performance suitable for a group of up to 50 people. Order the New Year's program and surprise the children with an extraordinary show that they will remember for a long time! We guarantee the most unusual entertainment and vivid memories for children and adults about the New Year's holiday "not like everyone else"!
Duration - 60 min. One instructor takes part in the performance.
space odyssey
Lots of experiments with space theme! This holiday scenario just created for those who like to unravel the mysteries of the universe. It contains all the best and most interesting things you need to know about the Cosmos!
The guys will take part in a competition for launching rocket balls;
- study the composition of the comet;
- learn why shooting stars do not reach the earth, and see a demonstration of this phenomenon;
- practice creating lunar craters;
- reveal the secret of the "ominous nebula" and much more.
Duration - 2 hours 30 minutes. The scenario is suitable for a group of up to 15 people. Two instructors take part in the performance. If there are more than 15 children in the group -
Chocolate Science 
Fun party and amazing treats! Check it out and believe me - science can be not only interesting, but also very tasty! The guys explore their language;
- learn about the history of chocolate and the technology of its preparation;
- try hot chocolate from the chocolate fountain;
- they will make their own sweets that each child will take home in memory of the holiday.
The scenario is suitable for a group of up to 15 people. Duration - 60 min. One instructor takes part in the performance. If there are more than 15 children in the group -
the cost is calculated individually.
detective science
Every child will feel Sherlock Holmes and plunge into the world of secrets, riddles and access to answers to many questions.
During this program, children will learn how to take fingerprints, soles and other surfaces.
Will be able to detect evidence and write with invisible ink.
They will be able to distinguish blood from syrup, make an identikit and independently make a tool for comparing evidence, and then take it with them.
And also, your child will be able to solve simple problems and, having picked up correct key to the solution, will receive a holiday gift.
Duration - 90 minutes. According to the script Detective Science" 1 or 2 instructors participate
Under the dome of the circus
The festive scenario will introduce children to amazing and mysterious circus tricks!
- children will see how the water disappears from the cup right before their eyes;
- create a real desktop fireworks;
- see a bright and colorful show of fountains;
- learn what invisible colors are, and will be able to draw "invisible pictures";
- unravel the secret of paper cups that cannot be broken and bent;
- and at the end of the show, the guys, together with the instructor, will arrange experiments with lasers and magic fog*!
* The smoke used in the experiment is not recommended for children prone to allergies.
The scenario is suitable for a group of 20 to 60 people. One instructor takes part in the performance.
Effervescent physics
- children will reveal the secret of "magic soda";
- purple mist and airtight bottle;
- make soda fountains;
- conduct an experiment with fizzy sweets;
- they will launch unusual firecrackers together with the "Mad Scientist";
- make "magic cupcakes"... and much more.
Reactions in Motion
- children will reveal the secret invisible ink;
- learn how to heat and cool water without fire and ice;
- learn about sand, which is "not afraid" of water;
- conduct experiments with a plasma ball;
Duration - 60 min. The scenario is suitable for a group of up to 15 people. If there are more than 15 children in the group, then the holiday is organized only with the involvement of a second instructor.
Everyone's crazy about blue
- together with the Mad Scientist, the guys will arrange a small fireworks display;
- will conduct experiments with special make-up and ultraviolet light;
- reveal the secret of the "ominous" green glow;
- be able to "catch" their own shadow;
- through special glasses they will see the rainbow, and find out what colors it consists of;
- they will make their own "Mad Slime", which they will take with them as souvenirs ... and much more.
Duration - 60 min. Attention! The program requires the possibility of darkening the room. The scenario is suitable for a group of up to 15 people.
If there are more than 15 children in the group, then the holiday is organized only with the involvement of a second instructor.
air burst
Children blow out the candle in an unusual way; 
- create small tornadoes;
- learn how to put an egg in a flask with a narrow neck, without damaging it, and then get it back;
- learn how to pierce balloons so that they do not burst;
- be able to see a mini-lightning in the room;
- they will make their own "Mad Slime", which they will take with them as souvenirs ... and much more.
Duration - 60 min. The scenario is suitable for a group of up to 15 people. If there are more than 15 children in the group, then the holiday is organized only with the involvement of a second instructor.
"Science Club" at school
This is cycle of children's interactive seminars in chemistry, physics and astronomy. These workshops are optional training sessions and are created on the basis of primary classes, for children aged 6 to 11 years.
The goal of the "Science Club" is to develop a positive attitude towards learning among students, to arouse interest in scientific knowledge and give maximum motivation to children at the first stage schooling.
The mission of this project is to prove to primary school students that learning can be exciting and interesting. The Science Club program is designed for academic year and includes thirty-seven scientific and educational seminars (4-5 seminars per month).
The cost of participation in the "Science Club" is only 900 rubles per child per month (when enrolling in a group of 25 to 30 people). We are ready to organize Science Club» at your child's school now!
Your actions:
1. At the next parent (school) meeting to discuss the possibility of creating a “Science Club”;
2. Gather a group of children from 25 to 30 people!
3. Select a representative from the group who will be its contact person;
4. Call us on contact numbers, discuss the number, choose topics and schedule classes;
5. Conclude an agreement with us;
6. Pay for our services and wait for "Crazy Science" to visit!
Topics of classes in the "Science Club":
Conquering the warmth
Light... Color... Motor!
magnetic magic
optical illusions
Plastic
tantalizing taste
sound waves
Static electricity
mineralomania
Dinosaurs
The ocean is in danger
Electricity
Our Feelings
air pressure
Planets and moons
Beyond the atmosphere
Space Phenomena
sun and stars
Life in Space
Space trip
Children's graduation 
Kindergarten graduates and primary schools waiting for an unforgettable journey into the world of science and new discoveries. Our company will come up with and organize a unique holiday for those who are not used to sitting still.
Our scientists will conduct unforgettable experiments and make children's graduation unlike all other holidays.
Holiday "September 1"
In order for the school to become a favorite place for the child, and classes do not seem boring and tedious, Crazy Scientists came up with exciting program. The purpose of this program is introduce children to the mysterious world of science and show how fun and amazing learning can be. Chemical experiments with steam and sound, optical illusions and experiments on his own shadow - he will introduce children to all this and many other things " crazy science". For those who go to school for the first time - this is a great chance to instill a love of knowledge, and for those who are already familiar with the school firsthand - another reason to have a fun meeting of the new school year! We would like to draw your attention to the fact that graduation celebration scenarios are updated and compiled according to the individual wishes of the client.
Seminars about health
"Life without tobacco", "Alcohol - No!" and "Kids Against Drugs"- This scientific and educational programs that introduce children to negative and dangerous consequences from bad habits. Crazy scientists by example exciting experiences, experiments and role playing show children how alcohol, smoking and narcotic substances destroy the human body.
Scientific presentation" Life without tobacco"It was created in order to prevent smoking among the younger generation. Scientific presentation "Alcohol - No! " was created in order to foster scientific literacy and prevent alcohol use among the younger generation. " Children against drugs» - new social program, which is part of Lectures on health"and clearly demonstrates to children what effect narcotic substances have on the vital organs of a person and on the whole organism as a whole. With the help of this program, in the language of experiments and experiments, we want to explain to each child that drugs are deadly poisons that kill a person, to work out negative attitude children to these substances.
The duration of the performance is 60 minutes. These workshops are suitable for children aged 7 to 13.
All our activities are entertainment with benefits for the health and development of your child!
For her 11th birthday, Leah "ordered" a scientific birthday party. The name came right away - "NIICHAVO" (according to the Strugatskys), but the content took a little longer.
The invitations were issued in the form of a standard booklet advertising a private company ( ready template). The cover reads: " NIICHAVO. Everything will be nothing, and maybe a FAQ, but for sure - it will be!". A lot of information fit inside (still 3 sheets!).
1. Scientific
Research
Institute
Extremely
Actual
Experiences
NIICHAVO is a cool laboratory for curious people.
At the heart of the activity is the question: "What will happen if? .."
2. NIICHAVO Laboratory invites you to **.**.2011 for the Day open doors. You will have the opportunity to conduct a couple of extremely relevant experiments, arrange an explosive experiment (one) and learn a lot of interesting and instructive things.
3. Start at 12.00.
Debris clearing - 15.00
Venue: NIICHAVO
The address
Tel.
Holding
I gave out badges with the inscription "NIICHAVO" to all those arriving.
Conducted a brief safety briefing (strictly follow the instructions, do not taste anything, make every effort and not destroy the apartment).
Then there was a sanity test.
The children were asked to cut a strip of paper into 3 parts, making only 1 cut.
Everyone coped surprisingly easily (I myself thought longer) - everyone just folded the strip and “ chik!". Here are 3 parts for you.
After that, the practical part began.
I want to note that the children were not interested in the scientific aspect of the experience itself (tension, density, etc.), they were only interested in the effect.
They are 11 years old, they do not study physics or chemistry, they are not very interested in the laws of the universe. But they liked mixing and adding so much that after a month the parents were still saying that the children demanded to provide them with the right ingredients at home..
Experience #1
Fill the glass with water up to the rim. Cover the top with thin cardboard (part of a cereal box is ideal) and, holding the paper with your palm, quickly turn the glass over. Now remove your hand.
Will water spill out of the glass? What if there is less water?
How much water does it take to get it out?
The results are compared and discussed.
Experience No. 2
Pour whole milk into a bowl.
Carefully apply a drop of liquid food coloring different color into the middle.
Dip a Q-tip into the dishwashing liquid, and then gently touch the milk.
Experience No. 3
Inflate and deflate Balloons in advance.
At the party, pour a Coca-Cola into each balloon, tie it up and shake the balloon.
What will happen? Why?
Experience No. 4
Pour vegetable oil into a tall stemmed glass.
And in a bowl a little alcohol solution (you can vodka). Take a pipette and gently drop the solution into the oil. What's happening? How long can the solution be added?
Experience No. 5
Pour some water into a plate (preferably tinted).
Put down the coin and ask who can take the coin without getting their hands wet.
After listening to the versions, say that you can do it.
Put a tea (heating) candle in a plate and light it.
Cover the candle with a glass so that it touches the bottom of the plate.
Water will be sucked into the glass, and you can easily get a coin without getting your hands wet.
Give everyone a chance to try.
Experience No. 6
I copied this experience from my Harry Potter script.
At that time there were many questions, so I will describe the preparation in more detail.
Take red cabbage (and only red cabbage), cut.
Add to boiling water (ideally distilled, but you can also just filtered). After a minute, remove from heat and let stand for 30 minutes.
Strain.
Pour the water into different containers. Add whatever comes to mind.
Lemon juice, vinegar turn the water bright red.
Try adding Orange juice and spoiled milk. Add to another vessel alkali - soda, washing powder, liquid bath cleaner.
Soda presumably makes the solution blue, and ammonia- green, but...
Imagine, everyone’s solutions turned out to be different! Inexplicable, but cool.
Experience No. 7
Take wooden, plastic and metal spoons and a straw.
Attach a bead to each spoon with a piece of butter on the same height. Place the spoons in a measuring cup and pour in about 7 cm of hot water.
What will happen? Why?
Experience No. 8
Take a small piece of cardboard and, holding it in front of a lit candle, blow.
What will happen to the flame?
Connect the ends of the cardboard and secure with paper clips without bending the middle.
Put paper clips to the candle and blow again.
What happens to the flame now?
Experience No. 9
Pour into a large glass in turn sweet syrup, glycerol, colored water, vegetable oil, colored alcohol.
Pour carefully over the rim of the glass and let the liquid settle before adding more.
What happened?
« The beauty!' one boy said dreamily.
Experience No. 10
This experience is best done last - it is very popular, takes a lot of time and requires a lot of cleanup after the event.
Everyone prepares their own goo.
To do this, mix the starch and cold water(400 gr. and one and a half cups, but it is better to experiment by adding water a little bit). Then add color and...
Someone begins to have fun (children), and someone watches in horror (parents). I hasten to reassure - everything is perfectly cleaned with a vacuum cleaner (from the carpet) and a rag (from oilcloth).
Goo is neither liquid nor solid.
You can make balls out of it, and if you put the ball in the palm of your hand, then the guu turns into a liquid and flows. It was the hit of the evening.
And then there was a cake and a discussion of the results. The children were delighted.
The best compliment was the phrase Leah, it cost me dearly to come here, but it was worth it!". The only negative is that the photographs are not very advantageous: well, flasks and flasks, and the very moment of the “transformation” is very difficult to capture.
http://www.7ya.ru/article/Nauchnyj-den-rozhdeniya/#null
Visiting Archimedes
(birthday script for growing children)
My daughter turned 10 this year, and this is the age when pirates, the search for maps and treasures in the chest no longer inspire. Therefore, we decided to focus on an "adult" topic - natural science experiments and experiments. The key character was Archimedes, and he led us along the path of learning the secrets of the world around us.
I have always been fascinated by the idea of Tanya Lavrenova's holiday "The Secret of the Montgolfier Brothers", so our scientific research smoothly taxied to the task of lifting off the ground with the help of a balloon. I thought for a long time and painfully how to connect Archimedes with aeronautics, until I found in one encyclopedia magic words: « The lifting force of the balloon is created by the gas enclosed in the shell (or heated air) with a density less than the density of the surrounding air (according to the law of Archimedes)". And everything immediately fell into place.
And as a form, we used Tatyana's idea from "The Day of Riddles and Trials" and her outstanding computer program.
So many thanks to both Tatianas for ideas and inspiration!
In total, 10 children participated in the holiday, of which 8 were 10-year-olds, one was a little older and one was a couple of years younger. This time we were at home (and not in nature, as usual), because. they constantly used all kinds of equipment, and the experiments required "home" conditions.
The guests were given stylized invitations with a courageous Archimedean profile on the cover in advance.
We started the holiday by watching the cartoon "Kolya, Olya and Archimedes" - a sort of Soviet story about the journey of pioneers to the Ancient World and comprehending the law of Archimedes in practice. In our case, it was an introduction to the topic.
With Movie Maker, I inserted the captions at the end:
"Attention! Insert paper into the printer immediately! You have a letter from Archimedes.
The letter was, of course, pre-printed, so as soon as the paper was inserted, the printer printed the message. I will not quote it in full, but its essence boiled down to the fact that Archimedes from time immemorial addresses children and invites them into the world physical laws. He will communicate with them using a computer, for which they need to find the "Archimedes" file on the desktop and run it (the same program by Tatyana P.). And as an assistant, he sends his student and friend Dr. Grigorius to them (our dad Grisha, wrapped in a white sheet, is a real physicist).
The children quickly found the file and launched the program (of course, with changes made to it beforehand). The greeting went like this:
« Today you are waiting for experiments, tasks, experiments and tests. After each experiment, you will have to answer my question and enter the answer into the computer. If it is correct, then you can get the next task. You will enter the codes in turn, the birthday girl begins. But first, I must test your intelligence and erudition.
You are ready? If yes, then press any key».
The guys press the key and get the first task:
1. Find envelope No. 1 (Where? We indicate a secret place). Read the statements and guess if they are true or not. For each correct answer ("yes" or "no") you will learn one letter. Guess which country and its capital are hidden in the resulting sentence, and enter them in capital Russian letters separated by a space (first the country, then the city).
Envelope #1
It contains a list of statements. The task was borrowed from Tatyana P., where you can see the questions and the correct answers.
For this test, I prepared a special form.
The desired proposal was written on a large sheet with a pencil (thinly, so as not to shine through). Each letter was covered with two leaves. On the top was written the number of the question, on the second (again, thinly) - the correct answer ("yes" or "no").
That is, we read a statement, for example:
« Children can hear higher sounds than adults».
The guys discussed whether it was true or not, and gave a group decision.
We picked up the first piece of paper and looked at what was written on it - “yes” or “no”. If their answer was correct, we raised the second leaf, under which there was a letter.
If the answer would be wrong, but the letter remained closed.
In our case, it was not possible to open all the letters (although it should be noted that the children gave more correct answers the first time than I did when I first read these questions), but they turned out to be enough to guess the rest.
Our proposal was: Franz and I made a bet, Jacques is a witness»
In it we found the country - France and the capital - Paris. These are "hooks" for the future (because the history of aeronautics begins in France).
We enter the code words into the computer, go to the next task.
2. Well done, you did a great job!
Now find the envelope number 2 (we indicate the place where to look). There you will find a description of several physical experiments. Everything you need is on the table. Read the descriptions of the experiments carefully and only then conduct them.
Do not forget to invite Dr. Grigorius - he will be your faithful assistant.
Discuss how this happens, thanks to what? Enter this word, this is the code.
Despite the simplicity of all the proposed experiments, I would advise you to first try to conduct them yourself, since there are some nuances in all.
Before each description there was a warning that you should first carefully read the description of the experience, and only then proceed with its implementation.
All the necessary equipment is collected on a small table.
From there, children take what they need to conduct this experience.
Envelope №2
Experience 1.
Equipment - a glass, a bottle of water, thick paper, a basin
Take a glass, a bottle of water and a piece of thick paper.
Fill the glass with water up to the rim. Cover the glass with a sheet of thick paper and, holding the paper with your palm, quickly turn the glass upside down.
Now remove your hand. Will water spill out of the glass?
You need to conduct the experiment over the pelvis.
If the water is poured to the top, the paper is thick enough and pressed well, then the water does not pour out, and the sheet seems to stick to the edge of the glass.
Experience 2.
Equipment - bowl, colored water, cork, glass
Take a tall glass and a bowl. Pour tinted water into a bowl (so that the water level is about 5-6 cm), put a cork in it and place a glass turned upside down directly on the cork. Is there still the same level of water under the glass as in the plate?
This experience is called diving bell".
If the glass is high enough, and not too much water is poured, then there is no water left under the glass at all, the cork lies at the bottom of the bowl. And outside the glass, the level rises slightly. Water can be slightly tinted (for example, with potassium permanganate) to make the experience look spectacular. But you can also use plain water.
Experience 3.
Equipment - plate, water, candle, lighter
Pour some water into a plate (can be tinted). Gently put a candle ("tea", in a metal mold) in a plate, light it. Cover the candle with the glass so that it touches the bottom of the plate. What will happen to the water?
When the candle goes out, the water will be sucked into the glass. To make the experience look spectacular, it is better to pour quite a bit of water. Then it will all be sucked into the glass, and the plate outside the glass will be dry. If you take not a plate, but a small saucer, then it will generally "stick" to the glass, and the glass can be lifted along with the saucer.
Experience 4.
Equipment - transparent water bottle, stopper, pipette
Fill the bottle with water, leaving two to three millimeters to the edge of the neck.
Take a pipette, draw some water into it and lower it into the neck of the bottle.
It should be at or slightly above the level of the water in the bottle with its upper rubber end. In this case, it is necessary to achieve that, from a slight push with a finger, the pipette sinks, and then slowly rises up by itself.
Now close the cork and squeeze the sides of the bottle, hold for a bit. What will happen to the pipette?
When squeezing the bottle, the pipette will sink to the bottom.
For this experiment, it is very important to control how much water is drawn into the pipette. If it is too small, you will need to squeeze the bottle very hard, children's strength is not enough for this. If there is more water in the pipette, it is enough to squeeze the bottle just a little, and the experience looks much more effective.
After all the experiments, we discuss which action physical strength they illustrated for us. It should be noted that the children turned out to be quite “advanced” and almost did not need the help of Dr. Grigorius.
We enter the code word - pressure into the computer. We get the following task:
3. Find the envelope number 3 (place). Conduct experiments.
By what force does this come about? Enter code.
Envelope №3
Experience 1.
Equipment - plate, water, strip of paper, scissors, dishwashing liquid
Pour clean water into a bowl.
Take scissors and, holding a narrow strip of paper over the plate, cut off small squares from it, trying to do it so that the pieces falling into the water are located on the water in a ring in the middle of the plate and do not touch each other or the edges of the plate.
Take soap (or dishwashing liquid) and put one drop in the center of the dish. What will happen to the papers?
They will quickly scatter to the edges of the plate.
Experience 2.
Equipment - plate, water, blade, needle, buttons, magnet
Can metal float on water?
Very carefully take a razor blade (it's very sharp!) and place it on the surface of the water. What happened?
Try to weight the blade by carefully placing a needle and 1-2 buttons on it. Try putting a needle on the water. What happens if you pre-magnetize it?
If the blade is placed carefully on the water, it will not sink, but will float on the surface of the water. When it is weighted (with a needle and buttons), you can see how it is slightly pressed into the water, but still does not sink.
If the needle is pre-magnetized, you get a compass.
You can also try driving a blade or needle through the water with a magnet.
Experience 3.
Equipment - glass, sunflower oil, alcohol mixture, pipette, bowl
Pour sunflower oil into a glass. Pour some alcohol solution into the bowl. Take a pipette and carefully, drop by drop, inject the solution into the oil. What is happening to him? What form does the liquid take? Why? Keep adding the solution until... Until what happens?
I took ordinary vodka, the alcohol content was sufficient. You can take medical alcohol and dilute with water.
The alcohol solution is collected in a beautiful ball that hangs near the surface.
When it becomes heavy enough, it sinks beautifully and smoothly to the bottom.
For this experiment, it is better to take not a glass, but a tall glass with a stem.
This will make it easier to observe from below to see the ball.
We discuss how it all works out - the papers scatter, the blade floats, the alcohol collects in a ball. The key phenomenon is surface tension.
Enter the word tension, go to the next level.
4. It seems, my friends, that you are a little tired.
You need to eat a little and rest. Eat the treat and write if you liked it. We make a snack (sandwiches, juice), write "yes",
let's go to the next level.
5. Find the envelope number 4 (place). Conduct experiments. The action of what force is illustrated by these experiments? Enter code.
Envelope №4
Experience 1.
Equipment - 2 eggs (boiled and raw), plate
Unroll both eggs on a large plate. You can see that the eggs behave differently. How to understand which one is boiled?
A boiled egg spins, but a raw one does not.
Experience 2.
Equipment - glass, postcard, coin
Take a glass. Put a postcard on it, and put a coin on the postcard.
Quickly click on the card.
What will happen to the coin? (She'll fall right into the glass)
What happens if the card is pulled slowly?
(The coin will move with the postcard)
We discuss, introduce the word "friction", go to the next level.
6. Find the envelope number 5 (place). Conduct experiments.
What changes in water, what is its characteristic? Enter code.
Envelope №5
Experience 1.
Equipment - three cans, alcohol solution, salt, water, egg, ice
Take three containers.
Pour into one alcohol solution (the strength of vodka was not enough, you need a little more. You can use not alcohol, but the cheapest cologne); in the second - water; in the third - a solution of salt.
Put in the first container (with an alcohol solution) an egg and a piece of ice.
Transfer them to a second container (with brine),
and then into the third (with clean water).
What happens to them? How to explain it?
Both ice and eggs sink in alcohol, both float in salt, and eggs sink in water, but ice does not.
Experience 2.
Equipment - weighted wax ball, glass, salt, water, transparent water bottle
Take the wax ball.
Put it in a container of water (the container should be about half full). The ball is slightly weighted (it itself is the size of a large grape, it has 2-3 paper clips inside), so it sinks. Prepare a salt solution (dissolve the salt in a glass of water until it no longer dissolves).
Pour a little saturated salt solution into the water and mix lightly. What happens to the ball?
He floats. By adjusting the amount of water and brine, you can ensure that the ball will hang in the middle of the container.
We discuss experiments, introduce the word "density". We get last task:
7. Remember the basic law that I discovered and proved? A buoyant force acts on a body immersed in a liquid or gas! For centuries, people have tried to use this power to lift themselves off the ground and into the sky. What was the name of the first aircraft on which a man took to the air? Enter the name in capital letters.
Enter the word " balloon" (I deliberately did not take the "balloon", because, firstly, it is too simple, and secondly, it is not entirely correct with scientific point vision) and receive a farewell message from Archimedes:
"Indeed, a balloon (or a balloon, as we used to call it) made a man's dream come true to take off from the earth. I was not destined to see it with my own eyes, but I know for sure that it happened. Find the file "Aerostat" on the computer desktop and listen to the history of aeronautics and the first human flights, and think about France at the same time!
And I, Archimedes, say goodbye to you. I send you greetings from the distant past, I wish you new interesting discoveries and all the best!"
In my search for information about balloons, I found an amazing resource that lays out the history of aeronautics concisely, but very informatively, text light for perception and is accompanied by incredibly beautiful pictures.
This is the site of the Kyiv Aeronautical Society.
Be sure to scroll through all 9 pages!
Based on this article, I prepared a short presentation in Power Point.
There was a minimum of text (mostly pictures), I tried to tell the story myself and give the children all sorts of tasks along the way so that they would not get bored.
For example, when we reached the first passengers of the hot air balloon, 3 volunteers had to portray them in pantomime (without sounds!), And the rest - to guess who it was (sheep, rooster and duck). Etc.
After the presentation, we started building our own balloons (thanks again to Tanya Lavrenova for the idea!). But first it was necessary to make passengers.
We made rope people.
They are knitted quite simply from two ropes, one is a little shorter (this is the base - the head and legs), the second is a little longer (these are the arms and body).
And it was possible, for example, to draw and cut out your portrait or mold passengers from plasticine.
Then we got to the baskets.
I bought small baskets (apparently, a planter, about 12 cm in diameter) in advance (very inexpensively, 15 rubles each), we tied strong threads of the same length to them.
I managed to find really huge balloons (about a meter in diameter), which we inflated with helium (we bought a balloon in advance, which is not a problem in Moscow).
Previously, the children were divided into pairs, and each pair made one balloon. This was due not only to limited number gas (it would simply not be enough for 10 such balls), but it was not easy to cope with the fact that it was not easy to cope alone.
Threads tied to baskets were attached to the balls with adhesive tape.
Attention! In no case should the adhesive tape be peeled off from the ball, because. he can burst. We lost one balloon like that!
We put our passengers in the baskets, and also put notes in which on one side was written a wish for the birthday girl (it was voiced by the authors), and on the second - our own cherished desire (remained secret).
Then we amicably went out into the street and at the expense of "one-two-three!" launched their balloons. And for a long time they followed their flight in the clouds - fortunately, the weather was clear.
It was, of course, a little pitiful to release our works of art, but the helium from the balloons would have evaporated in a day anyway, and our beautiful balloons bursting into the sky would have turned into crumpled rags. And so we all - both children, and adults, and bystanders - got a lot of vivid impressions!
And at home we were waiting for a treat - pizza and a birthday cake.
By the way, the kids made their own pizza.
Thus, we decided common problem- When some guests arrive early, while others are late. While the holiday has not yet begun, we invited everyone who came to join the pizza making.
May 31, 2017
party in scientific style- this is a great idea for a child's birthday, where the birthday boy and his guests will be able to make new discoveries and conduct interesting experiments. These are not only positive impressions, but also useful knowledge that children will enjoy learning.
It is erroneously believed that only teenagers may be interested in this kind of holidays, but this is not so. Children, starting from 4 years old, will like such a party, because this is just the age of active knowledge of the world.
Science shows are not just memorizing formulas and stating facts. This is an exciting process that is somewhat similar to a game where everyone is an active participant.
Therefore, feel free to choose a science party that will cause genuine delight in children, introduce them to interesting form with chemistry and physics, and in a good scenario, it may have a beneficial effect on cognitive activity child.
To organize a holiday, many turn to professionals for help. But their work costs money, and often a lot. But it's not even about money: experiments carried out by parents, and not strangers will have a very different effect. Yes, and you yourself will get a lot of pleasure from the process of preparation and the very triumph of science.
1. Preparing for a Science Party
First you need to send out letters to all guests with an invitation to the holiday. To do this, you can send both a paper version and use email. The second method will be less energy-consuming and in the spirit of the times, because now almost all children have their own electronic boxes.
It is important that the text of the letter be as formal as possible. It is worth addressing the guest by name and patronymic. You can use the appeals "doctor of science", "scientist", "candidate of science", "professor".
Make special badges in advance with photos of the kids, surnames and initials. With their help, it will be possible to make a meeting of guests as on a serious scientific conference. In invitation cards, ask to take a white coat with you, because in a scientific laboratory there is no way without a dressing gown. If this element of the wardrobe is tense, white men's shirts are quite suitable.
2. Party decoration in a scientific style
The walls of the room can be decorated with posters of your own making, on which various mathematical, physical and chemical formulas. Use portraits of famous scientists with their inventions. Will look great various charts, drawings and diagrams.
It is worth taking care to create two zones: for a feast and for experiments. These two zones cannot be too close to each other for safety reasons - you never know what can get into the food during the demonstration of experiments.
The table can be decorated in a scientific style. For example, serve compote not in a jug, but in a large flask. And instead of glasses, use beakers or even test tubes. Someone will say that drinking from them will not be very convenient. The problem is solved by using cocktail tubes. Snacks can be made in the form of small multi-colored tablets.
Come up with themed names for the dishes, such as "Essence of Power", "Truth Serum", " Big Bang», « Chemical reaction" other. Print out the name on paper, and attach it to a skewer like a flag. Insert the named skewers into the dishes.
3. Science experiments for a party
Decoration and food are good, but the highlight of the program will be various experiences. They should be:
- interesting;
- not requiring complex ingredients;
- not requiring long-term preparation;
- limited in time (children will not wait long);
- safe (and this is the main condition).
It is important to remember that experience must not only be shown, but also explained in an accessible way. Otherwise, it will just look like a focus. And do not forget that a science party will only be successful when the children actively participate in all the proposed experiments.
Experience No. 1 "Purple milk"
You will need:
- transparent glass;
- water;
- potato starch;
- the spoon;
Precautionary measures:
- The adult must ensure that the children do not drink or eat any of the demonstration components during the experiment.
- In order not to smear clothes and hands, it is better to use gloves and an apron.
Experience progress:
Water is poured into a glass. Then 1 tablespoon of potato starch is added there and mixed well. The water will then white color similar to milk. The next step is to add iodine to the liquid. To do this, you can also use a spoon, or you can simply pour it into a glass from a bubble.
If everything is done correctly, the liquid in the glass will instantly turn purple.
Experience No. 2 "Rainbow in a glass"
For experience you will need:
- cup;
- water;
- colored markers or felt-tip pens;
- paper towel;
- scissors.
Precautionary measures:
- Make sure that children do not get hurt by scissors. And best of all, volunteer to be their assistant and do all the manipulations with the scissors yourself.
Experience progress:
Fill the glass 1/4 full with water. Let's set it aside. Next, take a paper towel and cut out of it a strip 3 cm wide and 10-15 cm long. We don't need scissors anymore. Now we take the markers (it is better if they match the colors of the rainbow) and begins to put dots on the strip on one side horizontally. The points should be placed close to each other and show through to the other side of the strip. In order to make a rainbow, the colors must go in a known order. Strictly speaking, that's all preparatory work finished. It remains only to immerse the strip in the water with the side on which the dots were applied. After this simple manipulation, the rainbow on the paper will begin to rapidly rise upwards.
Such an experience will help the children visually see the process of water absorption by a solid body.
Experience No. 3 "Flying porridge"
For experience you will need:
- plate;
- oat flakes;
- balloon;
- threads.
Experience progress:
Spread oatmeal on a plate in a thin layer. Inflate a balloon and tie it. Now rub the ball against your hair. We do it well and diligently. And then we bring it to the plate and, together with the children, we observe how the cereal begins to take off from the plate and stick to the ball. This is a very simple, safe and at the same time effective experiment.
Experience No. 4 "Orange divers"
You will need:
- 3 oranges;
- water;
- transparent wide vase about 50 cm high.
Precautions: in general, the experiment is absolutely safe for children, but since during the experiment they will have to deal with water, it is better to put oilcloth aprons on them.
Experience progress:
Fill a clear vase 2/3 full with water. Next, one of the children is invited to dip 1 orange into a container of water to check whether it will drown or not. Orange, as you understand, will float on the surface. Next, the young experimenter is invited to remove the entire peel from the same orange and put it back into the vase (suddenly the citrus does not want to bathe dressed). When the peel is removed and the fruit has gone into the water, you can see how it goes to the bottom. So let's keep experimenting. We take another orange and remove only 2/3 of the peel from it. The child lowers it into the water, and everyone present can observe how it hangs exactly in the middle between the bottom and the surface of the water. And to complete the composition, let's drop the third orange into the vase untouched. It will become a bright point of the experiment.
Experience No. 5 "Invisible stick"
You will need:
- 3 tall glasses;
- 3 glass sticks;
- water;
- vegetable oil (preferably unrefined).
Precautions: All you need is aprons and gloves.
Experience progress:
At the beginning, ordinary water is poured into one of the glasses. A glass rod is placed in the same container, and everyone present can see it. Next, vegetable oil is poured into the second glass and the stick is also lowered. Everything seems to be the same as during the first stage of the experiment, except for one thing: the stick becomes invisible in oil. Children will be delighted. And in order to consolidate the result, it is necessary to pour half the water into the third glass, and then pour the same amount of oil on top. Due to the different densities of the liquids in the glass, the boundary between them will be clearly visible. And when the last stick is lowered into this container, only its middle part will remain invisible.
Experience No. 6 "Rainbow Volcano"
Inventory:
- 7 plastic glasses of 0.5 l;
- food coloring in all colors of the rainbow;
- any detergent for dishes;
- baking soda;
- vinegar;
- tablespoon;
- measuring cups;
- stirring stick.
Precautionary measures:
- It is necessary to cover the table with oilcloth on which the demonstration of the experiment will take place.
- Make sure that children in no case taste anything, and even more so do not eat or drink: all components are conditionally food, but in the concentration used they will be dangerous.
Experience progress:
7 children can demonstrate the experience at the same time. At the beginning, all plastic glasses are placed on the table in one line. Next, a small amount of food coloring of a different color is poured into each of them in the order they go in the rainbow. For next step 4-5 tablespoons are added to each of the glasses detergent for dishes. You can not bother and pour on the eye. Now pour 1 tablespoon of soda into each container. And now it's time for a thorough mixing. You need to mix the resulting mass quickly and intensively. When this part of the work is done, we move on to final stage: simultaneously pour 50 ml of vinegar into all cups. A reaction occurs immediately and bright and light colored foam will gush out of the cups. If the kids really like the spectacle, you can gradually pour vinegar into the container and thereby prolong this colored eruption.
Experience No. 7 "Unusual cocktail"
Inventory:
- dishwashing liquid;
- water;
- vegetable oil;
- alcohol;
- tumbler.
Precautionary measures:
- This cocktail is not to be drunk.
- To avoid adverse reaction for pungent odors, it is better to do the experiment in a gauze bandage.
Experience progress:
First, the glass is filled with honey to 1/6 of its volume. In the same amount, dishwashing detergent is added. After him, ordinary water is carefully added. Next is the turn of vegetable oil. This should be done slowly and in a thin stream so as not to damage the remaining layers. At the end, we pour alcohol, after which the result is shown to those present and a comment is given on how different density substances helps them not to mix.
Experiences can be much more. Here are only the safest and those that are suitable for any age. You can choose more complex experiments. The main thing is that absolutely all children take part in them.
Scenario of the chemical evening "Miracles with your own hands."
introduction teachers. Dear Guys! Today, students of the seventh, eighth, ninth grades have gathered here. Each of you has your own task. Eighth graders cooked interesting experiences, will show various "miracles * and reveal the secret of each miracle." Ninth graders, you are not just spectators, be on the alert, carefully follow everything that happens, be ready to answer questions that eighth graders will ask you. Your role, seventh graders, is to decide for yourself one question: is chemistry an interesting science, do you want to study it? Of course, in chemistry, as in any science, in addition to the entertaining, there will also be difficult. But it's hard, but interesting - that's what thinking person just what is needed is that our mind should not be in idleness and laziness, but constantly work, work, and work. At the very end of our meeting, I will ask you a single question, and you will answer it, And now let's get started to miracles."
Four students come out.
1st student. It's hot in here, I'm thirsty. Who 6 ask for water?
2nd student. I would drink a lot harations without syrup.
3rd student . Oh, and I love with syrup,just a little, a little.
4th student. Brothers, I need a cow -Milk I want a pair!
The 5th student leaves. In his hands he has a large flask with liquid.
5th student. Are you guys thirsty? In countbe a fabulous liquid, miracles are on my shoulder, Ibecause I study chemistry. Put up your glasses! ExperienceWe'll do it right, everything's going according to plan.
The guys take from the table and substitute glasses in which solutions of the necessary substances are placed on the bottom. The 5th student from the flask pours for everyone WHAT He Asked.
5th student. Here is water, here is soda, herefresh milk, it turned out very cleverly, but the secret easy to know.
The guys pretend that they want to drink the contents of the glasses.
5th student . Stop guys, wait a minutethere was no trouble, please don't drink anymop, no water. This austere office has serious bans. Remember, friends: hereneither drink nor eat.
1, 2, 3 We are familiar with miracles, we can do them ourselves.
5th student . The first miracle happenedwas it in the glasses?
1st student. And the answer is very simple -My glass is empty.
2nd student . I have soda in a glass.
3rd student . Together with her methyl orange.
4th student. Mine has barium chloride.
5th student. What does it say? Guess,ninth grade. We hope for you! Not composedit will be hard for you to understand what is in the flask ...
All ninth graders: Acid!
5th student . You probably know her rank?
9th Class. Sulfur!
They leave. The 6th student leaves.
6th student. In the wonders of the chemical I am alreadysharp, without fire, without matches I will make a fire. On theI lay down splinter-firewood and the fire is ready. I'll takecotton wool in my hand, wet it with alcohol, on the firedrop: burn, since I want!
Does everything he says, the fire lights up.
6th student. I will reveal my secret, nikawhich is no secret. Hidden here under the fireincendiary mixture. We are familiar with miracleswe can make them ourselves!
Leaves. 1st student appears
7th student. I have a calm experience, withoutfire and flame. I will ask questions. Maidenclass, attention!
Doing an experiment with phenolphthalein.
7th student. I'm not afraid of acids, evenvery strong. But in solutions of alkalislyu raspberry. Brighter than the juice of all raspberries, who am I?
9th Class. Phenolphthalein!
The next experiment is with methyl orange.
7th student. In alkalis I am very yellow,and very red in acids. And in a neutral environmentnoah - the color is orange, beautiful. Indicatorvery important, what's my name?
9th Class. Methyl orange.
Experience, with a piece of paper of a universal indicator.
7 - and student. This yellow piece of paper will indicate everythingwithout difficulty: turn blue - alkali in the flask, paintno - acid. Kohl neutral environment- notwill change color then. We are for these instructions call her?
9th Class. Universal!
Leaves. The 8th student leaves.
8th student. We are familiar with miracles - to dowe can do them ourselves. Ninth grade, attention, willyou a task. It is poured onto an ordinary boardwater, and a glass of melted snow is also placed there.
1st student leaves.
1st student. I pour salt into a glass, and you,buddy, get in the way. I count to fivea you twist everything with a stick.
Slowly counts for the glass to freeze.
8th student. Freeze a chemical glass, process...
9th Class. endothermic
The 8th and 1st students leave. The 9th student leaves.
9th student. All water, snow and mortar,boring conversation... I have other plans:I will kindle a flame on the grid.Sets fire to a hill of sand soaked in alcohol.
I still don’t know how, snakes will climb out of the sand. Terrible, biting, won't you cry from fear? Are you not afraid? Well, look. Not all at once. Wait. To see the snakes, you need to warm them up well, but while I wake them up, I’ll tell you about something else.
Speaks and demonstrates experience at the same time,
One summer I had a sore throat for a very long time. Have registered from an angina to rinse with furacillin. Still, the sore throat passed, although I fought with it for a long time. And there were two bottles of furacillin left. Today we whitewashed the walls, washed our hands from lime. I decided to pour the old medicine into this water. I was terribly surprised, even shuddered, when the lime water turned reddish-red. She brought the rest to school, and now furacillin alkali determines us, like phenolphthalein. Does not change color in water, does not change in acid, in alkalis furacillin is bright, like an orange.
He goes back to the experiment with "black snakes".
Alcohol burns and releases a lot of heat. It decomposes soda into carbon dioxide with heat. It chars sugar - that's where the blackness comes from. This carbon dioxide inflates the sugar with bubbles. Everything is clear, clear here, snakes, why crawl. We are familiar with miracles, we know how to do them ourselves.)
Leaves. The 2nd and 10th students appear.
10th student. Smile soon, smilebe more fun. Today we are opening our toatelier.
2nd student. We are ready to startsimple work. We can get it instantly your photo.
Invite one of the seventh graders.
10th student. Here on this blank slateWatch attentively. Smile more cheerfully necessarily.
2nd student. We can show this pictureI eat easily: let's sprinkle the photo a little from the bullets verizer.
Invites the next.
10th student. Another blank sheet of paperwe have a different way, the photo was takenwe cook with a hot iron.
He irons the sheet with an iron, shows the picture to everyone. Invites more seventh graders.
2nd student. There is also a third way,you note to yourself that nothing to a sheet of paperwe will not touch.
This photograph is being developed under a bell in an ammonia atmosphere.
10th student. Look, can everyone see it? BUTthe secret is very simple.
2nd student. Helped us herefamiliar indicator.
Shows the first picture.
Painted with acid.
Shows the second picture.
Ammonia gas.
Shows a picture under the bell.
2nd and 10th pupils. We are familiar with desami, we know how to make them ourselves.
They leave. Appear 4th and 3rd students.
3rd scientist and k., Here's another fun: whowill give a hand to cut off? It's a pity the hand is on the doorchenie, then you need a patient for treatment.
7th grader is invited.
4th student. We operate without pain, however,there will be a lot of blood.
3rd student. For each operation, you needsterilization. Help, assistant, give me iodine!
4th student . One moment! (Gives "iodine").
3rd student. "Iodine" we moisten abundantly,to keep everything sterile. Don't turn around,Cient, give me the knife, assistant!
Makes a knife"incision", "blood" is flowing.
4th student. Look, straight in a trickleblood flows, not water. But now I'll wipe my ruku - not a trace of the cut.
- 3rd student. We explain this Experience for nowwe can’t, we’ve been transferred to the ninth grade - explain we will find a solution.
They leave. The 5th student leaves. Reads a few stanzas from P. Ershov's fairy tale "The Little Humpbacked Horse" about the firebird.
5th student. The story is slightly remembered
about the horse, about the hunchback.
There is a firebird feather
Vanya brought happiness.
It's time to marvel
as the feather of the firebird burns.
Lights alcohol in evaporation cups, alcohol contains dissolved salts of sodium, potassium, keda, strontium, etc. Then closes the cups with a thick sheet of cardboard.
5th student. Answer, ninth grade, bywhy did the fire go out? The flame will die without what? Him need...
9th Class. Oxygen!
The 5th student leaves. The 11th student appears, sets the finished model of the volcano on the table. Lights a spirit lamp, heats a glass rod
11th student. And now, friends, for youfrom history story. Slept early at night or in the morningtownspeople, suddenly a flame appeared from the crater of the volcano. Rumble and rumble, streams pour through the mouthlava. So under the lava and under the ashes perishedglorious kind. I'll show you how I can, the death of th kind of Pompeii.
Touches with a heated stick, "volcanic eruption" begins.
11th student. You guys will remember this eruption.
What is the type of reaction here, by the way?
9th Class. Expansions!
All participants leave.
1st student. Our time is up.
2nd student. But we didn't show you everything.what we can do.
3rd student . We still know how to bend the stackline tubes and drill rubber plugs.
4th student. Speak chemical language.
5th student. Convert copper coins into"silver".
6th student. make a thunderstorm in test tube.
7th student . Get hydrogen and oxygen.
8th student. Explode explosive gas.
9th student. Making black powder and more much more.
10th student. This is what you will learn in next year.
11th student. If you are passionate aboutstudy the most interesting science- chemistry.
Teacher. And so our fun hour is over. In a year, seventh grade, I will be able to do all this if you want. You noticed that ninth-graders often had to finish phrases, speak in rhyme. It's easy if you know what to say. So, now I have the same question for you that I promised to ask at the beginning of our meeting. Interesting secrets hidden in this office. I look forward to seeing you next year. What will everyone tell me? I...
7th grade. I will come"
Teacher, so come! I am waiting for you!
