Entertainment scenario "a journey into the world of experiences and experiments." Themed science shows for children

Science is not always a boring and serious matter that is dealt with exclusively by adults. Children's party in scientific style can be a fun and exciting event if you organize it creatively. We will try to inspire you!

An unusual child’s birthday surrounded by flasks and test tubes will be a pleasant and useful holiday. Guests will learn a lot of new things, practice in the laboratory and test their knowledge. Amazing discoveries and pleasant surprises will cheer up all children.

At a scientific festival for children, there must be a presenter - one of the adults playing the role of a “mad” scientist. This funny professor with funny habits and tousled hair will help the children conduct experiments in chemistry and physics. Children will definitely not get bored with him!

Invitations to a scientific festival

Little smart guys and girls will be pleasantly surprised when they receive not only a verbal invitation, but also beautiful card indicating the date, place and time of the holiday. Decorate your invitation card chemical formulas, print out frames from famous cartoons, the main characters of which are young scientists. The text may begin in a formal tone, by addressing the little guest by name and patronymic. Be sure to write that the child will have an exciting program and tasty treats.

Scientific style room decor

The room for holding a holiday in a scientific style should resemble a laboratory in its entire appearance. Portraits of famous scientists hanging on the walls, table chemical elements, thick hardcover books. Place cones and bottles with colorful juices everywhere. If you have a chalkboard at home, write the words “Happy Birthday!” in chalk. surrounded by chemical formulas.

Outfits for little scientists

Clothes should, at first glance, reveal that children are inquisitive scientists. It’s great if you manage to get white coats for the children and round glasses with plain glass. Have fun dressing up as soon as guests step on the threshold of the “office”. In addition, give each child a name badge that says “Scientist.”

Table setting in scientific style

Use a variety of jars, flasks and bottles to serve common foods and drinks. For example, marmalade candies or lollipops in glass “chemical” containers will look interesting. Even at the table, the guys will not leave the feeling that they are literally on the threshold of a scientific discovery.

The jelly will look interesting different colors in cups, as well as other products with safe food colorings. Blue lemonade or blue cookies - in the world of science this may not be the case!

Eating a bright cake decorated with numbers and symbols of chemical elements is, of course, one of the most pleasant events of a children's scientific holiday. Cold fireworks with beautiful flowing sparks will add a magical atmosphere.

Fun at a children's party in a scientific style

If you doubt your abilities and scientific knowledge, you can invite animators to conduct the entertainment part of the holiday. But we suggest making do on our own- and arrange a chemistry show that will arouse admiration and open up a lot of new things for the children. If desired, parents can go with the birthday boy and guests on an excursion to a museum or planetarium.

Quiz. Come up with interesting questions to test children's knowledge. Be sure to take into account the age of the guests. There should be a prize for every correct answer. Alternate between complex and simple questions with funny and humorous ones.

Drawings on milk. You can pour regular milk into a large flat container, add dish soap and add food coloring. When the ingredients are mixed, a chemical reaction occurs and beautiful abstract patterns appear.

Soap bubbles. Invite guests of the children's science party to prepare liquid for soap bubbles with their own hands. To do this, you need to mix a glass in a jar liquid soap with six glasses of plain water. Take the wire and bend it so that a ring is formed at one end. Now all that remains is to dip the ring into the mixture and begin the soap performance.

Tornado in a bottle. Show your kids an incredible experiment with water. Fill a plastic bottle 3/4 full with water and add a couple drops of dishwashing liquid and glitter to help you see the tornado better. Screw the lid well and turn the container over, holding it by the neck. Spin the bottle quickly and stop. Children will see a water whirlwind - a small tornado. Water moves around the center due to centrifugal force.

It’s quite possible to organize a child’s birthday party in a scientific style on your own. This day will be remembered by the birthday boy and his guests with bright, fun experiments and positive impressions. A children's holiday event in this format will be useful and inspire the kids!

Scenario for the chemical evening “Do-it-yourself miracles.”

Teacher's opening speech. Dear guys! Today, seventh, eighth, and ninth grade students have gathered here. Each of you has your own task. Eighth-graders prepared interesting experiments, showed various “miracles* and revealed the secret of each miracle.” Ninth graders, you are not just spectators, be on the alert, carefully follow everything that is happening, be prepared to answer the questions that the eighth graders will ask you. Your role, seventh graders, is to decide for yourself one question: is the science of chemistry interesting, do you want to study it? Of course, in chemistry, as in any science, in addition to the entertaining, there will also be difficult things. But what is difficult and interesting is that what a thinking person needs is for our mind not to be in idleness and laziness, but to constantly work, work and work. At the very end of our meeting, I will ask you one single question, and you will answer it, Now let's get started To miracles."

Four students come out.

1st student. It's hot here, I'm thirsty. Who has 6 ask for water?

2nd student. I would drink a lot haZiva without syrup.

3rd student . Oh, I like it with syrupjust a little bit, a little bit.

4th student. Brothers, I need a cow -I want fresh milk!

The 5th student comes out. In his hands he has a large flask with liquid.

5th student. Are you guys thirsty? In countno fabulous liquid, I can handle miracles, II'm teaching chemistry. Put up the glasses! ExperienceWe will definitely carry it out, everything is according to plan.

The guys take from the table and place glasses in which solutions are placed on the bottom necessary substances. The 5th student pours from the flask to everyone WHAT He Asked for.

5th student. Here's water, here's soda, here'sfresh milk, it turned out very cleverly, and the secret easy to find out.

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 anythingno water, no water. There are serious prohibitions in this strict office. Remember everything, friends: hereYou can't drink or 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 quite simple - it wasMy glass is empty.

2nd student . I have soda in my glass.

3rd student . Along with it is methyl orange.

4th student. Mine contains barium chloride.

5th student. What does this mean? Guess,ninth grade. We count on you! Not composedIt's hard for you to understand what's in the flask...

All ninth graders: Acid!

5th student . You probably know her rank?

9th Class. Sulfuric!

They leave. The 6th student comes out.

6th student. In the wonders of chemicals I am alreadyI'll make a fire without fire, without matches. OnI add a bed of splinters and firewood and the fire is ready. I'll take itput some cotton wool in your hand, soak it in alcohol, put it on the firedrop: burn, if I want!

He does everything he says, and the fire lights up.

6th student. I'll tell you my secret, NikaThere's no secret here. Hid 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. Nineclass, attention!

Conducts an experiment with phenolphthalein.

7th student. I'm not afraid of acids, evenvery strong. But in alkali solutionsI like 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 in acids it is very red. And the environment is neutralnoah - the color orange, beautiful. Indicatorvery important, what is my name?

9th Class. Methyl orange.

Experience with a piece of universal indicator paper.

7 - and student. This yellow piece of paper will indicate everythingwithout difficulty: it will turn blue - there is alkali in the flask, paintNo - acid. If the environment is neutral - notwill change color then. We are for these instructions as shall we call her?

9th Class. Universal!

Leaves. The 8th student comes out.

8th student. We are familiar with miracles - dowe can do them ourselves. Ninth grade, attention, there will beyou have a task. Pours onto a regular boardwater, and a glass of melted snow is also placed there.

The 1st student comes out.

1st student. I pour salt into a glass, and you,my friend, please interfere. I count to fiveA You twist everything with a stick.

He slowly counts so that the glass has time to freeze.

8th student. The chemical glass froze, process...

9th Class. Endothermic

The 8th and 1st students leave. The 9th student comes out.

9th student. All water, snow and solution,boring conversation... I have other plans:I'll light a flame on the grid.Sets fire to a pile of sand soaked in alcohol.

I don’t know how to do that yet, snakes will crawl out of the sand. Scary, biting, won't you cry from fear? Aren't you 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 something else.

He speaks and at the same time demonstrates experience,

One summer I had a sore throat for a very long time. They prescribed me to rinse with furacillin for a sore throat. Still, the sore throat went away, even though I fought it for a long time. And there are two bottles of that furacillin left. Today we whitewashed the walls and washed our hands of lime. I decided to pour the old medicine into this water. I was terribly surprised, I even shuddered when the lime water turned reddish-red. I brought the rest to school, and now furacillin determines the alkali for us, just like phenolphthalein. Does not change color in water, does not change in acid, in alkalis furacillin is bright, like an orange.

He turns again to the experience with “black snakes”.

Alcohol burns and produces a lot of heat. It decomposes soda with heat into carbon dioxide. It chars the sugar - that's where the blackness comes from. This carbon dioxide inflates the sugar with bubbles. Everything is clear, it’s clear here, snakes, why they crawl. We are familiar with miracles, we know how to do them ourselves.)

Leaves. The 2nd and 10th students appear.

10th student. Smile quickly, smilebe more cheerful. We are opening our pho today tailor shop

2nd student. We are ready to beginsimple work. We can get it instantly your photo.

Invites one of the seventh graders.

10th student. Here on this blank sheet of paperlook carefully. Smile more cheerfully - this is Necessarily.

2nd student. We can develop this photographI eat it easily: I sprinkle the photo with a little bullets verizer.

Invites the next one.

10th student. Again a blank sheet of paperWe have another way, a photograph of the proglaWe smoke with a hot iron.

He irons the sheet and shows everyone the photo.” Invites more seventh graders.

2nd student. There is also a third way, thisNote to yourself that nothing to a piece of paperWe won't touch.

This photograph is developed under a bell in an ammonia atmosphere.

10th student. Look, can everyone see it? AThe secret is quite simple.

2nd student. Here he helped us in our workfamiliar indicator.

Shows the first photo.

They painted with acid.

Shows the second picture.

Ammonia gas.

Shows a photo under the bell.

2nd And 10th students. We are familiar with chu desami, we know how to make them ourselves.

They leave. The 4th and 3rd students appear.

3rd scientist and k., Here's another fun: whowill he give his hand to be cut off? Sorry for the handreading, then the patient is needed for treatment.

A seventh grader is invited.

4th student. We operate without pain, however,there will be a lot of blood.

3rd student. For every operation you needsterilization. Help, assistant, give me iodine!

4th student . One moment! (Gives “iodine”).

3rd student. We will moisten it with “iodine” generously,so that everything is sterile. Don't turn around, papatient, give me the knife, assistant!

Does with a knife"cut" "blood" flows.

4th student. Look, just a trickleblood flows, not water. But now I'll wipe my handku - not a trace of the cut.

- 3rd student. This Experience we explain for nowwe can’t, I’ve been promoted to ninth grade - explain We'll find some agreement.

They leave. The 5th student comes out. He reads out several verses from P. Ershov’s fairy tale “The Little Humpbacked Horse” about the firebird.

5th student. We remembered the fairy tale slightly,

about the horse, about the hunchback.

There's a firebird feather

It brought Vanya happiness.

It's time to marvel

like the firebird's feather burns.

He lights the alcohol in the cups for evaporation, the alcohol contains dissolved salts of sodium, potassium, kedah, strontium, etc. Then he covers the cups with a thick sheet of cardboard.

5th student. Answer, ninth grade, byWhy did the fire go out? Without what will the flame die? To him needed...

9th Class. Oxygen!

The 5th student leaves. The 11th student appears and places the finished model of the volcano on the table. Lights an alcohol lamp, heats a glass rod

11th student. And now, friends, for youfrom history a story. Slept early at night or in the morningtownspeople, suddenly a flame appeared from the crater of the volcano. Rumble and roar, streams pour through the mouthlava. So under the lava and under the ashes he diedglorious family. I'll show you, as best I can, the death of family of Pompeii.

Touches with a heated stick, a “volcanic eruption” begins.

11th student. You guys will remember this eruption

By the way, what type of reaction is this?

9th Class. Decompositions!

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 can still bend the stacklinen tubes and drill rubber plugs.

4th student. Speak chemical language.

5th student. Copper coins turn into"silver".

6th student. Make a thunderstorm V test tube

7th student . Receive 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 bu next year.

11th student. If you are passionatestudy the most interesting science- chemistry.

Teacher. Our entertaining hour is over. In a year, seventh grade, you will be able to do all this if you want. Have you noticed that ninth graders often had to finish sentences and 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'm looking forward to seeing you next year. What will everyone tell me? I...

7th grade. I'll come"

Teacher, so come! I'm waiting for you!

New Year's Eve scenario
at the Children's Science Club
(Children's "science show")

New Year's Eve in the form of a scientific performance, the script of which is offered to your attention, was held for pupils of the Children's Science Club of the Preobrazhensky Children's Children's and Children's Science Club and their parents in December 2013.

Duration - 1 hour 15 minutes - 1 hour 30 minutes.

The presented material can be used to prepare holidays, theme parties and cool hours, in school and additional education.

Characters:

Presenters-teachers of the Children's Science Club:

First teacher (P1)

Second teacher (P2)

Baba -Nonscience (BN) - mythical creature similar to Baba Yaga

Children (D)- pupils of the Children's Science Club (grades 4 - 8).

In advance, only the experiments themselves are prepared with the children, and each group prepares separately for the holiday. Thus, interest in the performance not only of spectators, but also of participants remains throughout its entire duration, despite the fact that almost all students are involved in the demonstration of experiments.

On stage: tables for demonstrating experiments, audio equipment. Demonstration of experiments can be accompanied by music.

The evening begins with a brief congratulation from the teachers present, which is unexpectedly interrupted by the appearance of a character BN. This is a surprise for both the audience and the performers of the experiments, so only the presenters know before the start of the evening.

BN: Oh, you nasty scientists!! What did the people here think? New Year celebrate?! Probably, they came up with all sorts of their own scientific experiments! Now the fun will begin, you will receive gifts... (with a grin). HA-HA-HA! I didn’t waste my time either, I also prepared a gift for you, and what a gift... ( menacingly). Do you know the key? ?…(shows the key)

P1: Oh you!!! This is my key to the office, and there, guys, are your gifts!! Who is this anyway?!! ….

P2: Yes, it looks like Baba - Unscience has come to visit us, guys. And she always causes nothing but trouble.

BN: They completely forgot about me, old lady, but I’ll be older than your Science!!! This I I ruled here for many thousands of years, until all sorts of corrosive people with their Science forced me out. But I know and can do everything even without your Science. Do you want some gifts?!! ( guys answer: YES) HA-HA-HA! Then, learned heads, show me something that I, the unlearned one, could not do. Surprise me - the key is yours, so be it.

P: Well, guys, let's show it?!!

D: Let's show you!!

P1: Can you, BN, boil water with your hands?!

BN: Yes, easy! I cook my porridge like this every day.

P1: Well, boil some tea for us!!!

Give BN a jar of water. He tries to boil it, but it doesn’t work.

P1: What doesn't work?

BN: Yes, my hands are frozen...

(At this time, behind the scenes, the children, under the guidance of a second teacher, pour very hot water fill the jars up to half, pump out more air, remove the pumps, take the jars into the hall. Attention! Let's take it cold hands behind air Part. The water is boiling. Will be needed: 0.5 l jars, lids and pumps for vacuum canning, boiling water, ice for cooling hands.)

BN:(carefully hides surprise): Yes, you probably warmed up your hands there on the stove. And why should we be surprised?

P1: Well, okay, but can you at least muddy the waters?

BN: What about?!!! I’m actually a champion in this matter!

They give her the same jar of water.

P2: Come on! Muti!

He waves his arms and casts a spell. She can't do anything.

BN: Oh! Yes, I’m apparently sick today...

Children take out prepared flasks with lime water. They lower the tubes into them and blow. The water becomes cloudy. Will be needed: slaked lime, flasks, silicone tubes.

BN: Ay-ay-ay, you can’t smoke so much! ( Shakes his finger) You have only smoke inside!!! No wonder the water gets cloudy!!!

P1: Okay, granny, you don’t know how to boil, you don’t know how to stir, maybe you can make the water smoke like a fire?!

They still give her the same jar of water.

He works, he tries. Nothing comes of it.

BN: Oh, this is probably your water, tap water, not rain. This one won't smoke...

Children take out prepared containers with hot water and containers of dry ice. Dry ice is thrown into the water. You will need: containers (large glass bowls) for water, granulated dry ice, hot or warm water, cotton gloves)

BN: So what? So what? ( screams) Did you throw your Moscow snow with all sorts of chemicals?!…. So it makes me smoke!!!...And in general, I’m tired of your water! ( Gives it to the bank)

P2: Well, since you're tired of water, maybe you'll like balloons? Make sure that this pipe itself inflates the balloon for us.

They give her an empty, hollow, opaque cylindrical vessel. BN looks at him.

BN: What ball?! Where is the ball?! (He examines the vessel from all sides. He is offended.)

BN: Eh, you! And also scientists!!! Are you making fun of your grandmother?! Now I’m leaving altogether, you’ll be left without gifts.

P2: So, you can’t?! But we can.

Children take out prepared vessels (one vessel) in which plastic bottles, smaller vessels in height, 1/4 filled with vinegar. A balloon with 2 tsp is placed on the neck of the bottle. baking soda, so that the soda does not spill into the bottle in advance, and so that the ball is not visible - it is inside the vessel. Those performing the experiment straighten a ball placed on a bottle and pour soda into vinegar from it. The ball begins to inflate and emerge from the container.

You will need: one or more cylindrical opaque vessels, plastic bottles according to the size of the vessels, ball(s), vinegar, soda.

BN(indignantly watching the ball appear): Well, you're definitely kidding me. I'm leaving. Come on! I don't want to look at this nonsense anymore! ( trying to leave)

P1: Well, okay, grandma - Nenaukushka, don’t be offended. Make it for us better dough. Can you?

BN (returns joyfully) : According to the test, I am a skilled craftswoman, the likes of which cannot be found. For thousands of years, no matter what test I did, I managed just fine without your science. Which one do you want - thick or liquid?

P1: And we would like something that flows, but doesn’t flow out, so that it is both thick and liquid at the same time!

They give her flour and water, a mixing bowl, a spoon. Trying to knead the dough.

At this time, the children take out the prepared starch mixture and begin demonstrating experiments with a non-Newtonian liquid. The set of experiments can be any one desired. Will be needed: corn or potato starch, water, containers, trays, silicone gloves.

BN peeks and is angry that she can’t do this, but hides her surprise.

BN: You've got something wrong here again with your science. But I understood everything! This is you all your childhood porridge collected the half-eaten, slimy foam they threw in some milk, chewing gum you stuffed your own sticky stuff, ground it all up and mixed it all up, and now you’re bragging about this nonsense to me?! Dough for me too! Then I can do this too. And in general, I look at you, learned heads, and feel melancholy... You don’t have a New Year’s tree or toys.

P1: That's why we are a science club. We don’t have Christmas balls on our Christmas tree...

Children carry out glass cylinders filled with water and light vegetable oil. The cylinders are illuminated from below by LED flashlights hidden in the stands. Experiments are carried out based on different densities of immiscible liquids: colored water is dripped from a large pipette, dropping balls through the oil into the water; the same thing, but instead of water we take a mixture of it with alcohol; we drop colored alcohol onto the interface between water and oil, then we introduce water into the alcohol ball with a pipette, and it sinks; throw any effervescent tablet into the cylinder with oil and colored water. You will need: large-volume glass cylinders, 5 ml plastic pipettes with a long spout, stands for cylinders with flat flashlights, water, oil, alcohol-water-soluble dyes, effervescent aspirin or ascorbic acid.

BN looks wide-eyed in surprise, but then comes to his senses.

BN(feigning disappointment): Oh, just think, colored balls float back and forth and burst... No, after all, your holiday is boring...

P2: Why is everything wrong with you, grandma? Are you planning on causing a volcanic eruption here?!!

BN: What?! Volcanic eruption? You're lying, no one can do this, not even me! (to the side) Oh, I spilled the beans!

P2: Can't you, Nenaukushka? But Science can!

Senior pupils demonstrate the “Vulcan” experiment using ammonium bichromate with magnesium powder. A steel sheet is prepared in advance, onto which a small pile of reagents is poured. It is set on fire with a long match. You will need: ammonium bichromate, magnesium powder, steel sheet, fireplace matches. TB: Do not inhale the resulting green chromium oxide powder .

BN:(horrified) Ay, ah, ah!!! They are setting fire, save, help!!! Take your key, I don't need it! (gives the key and runs away).

P1: Thank you guys for defeating Baba Nenauka! Who helped you with this?

D: Science.. Knowledge...

P2: That's right, knowledge is power! That's why you deserve gifts today!

Gifts are distributed. If desired, a festive tea party can be arranged.

Authors: Gracheva Irina Vyacheslavovna, Kupriyanova Maria Igorevna
Position: additional education teachers
Place of work: GBOU Palace of Creativity for Children and Youth "Preobrazhensky"
Location: Moscow

If you're wondering how to celebrate your child's birthday, you might like the idea of ​​hosting a science show for kids. IN lately scientific holidays are becoming increasingly popular. Entertaining experiments and almost all children like experiments. For them it is something magical and incomprehensible, and therefore interesting. The cost of hosting a science show is quite high. But this is not a reason to deny yourself the pleasure of watching the amazed children’s faces. After all, you can do it on your own, without resorting to the help of animators and holiday agencies.

In this article I have made a selection of simple chemical and physical experiments and experiments that can be carried out without problems at home. Everything you need to carry them out can probably be found in your kitchen or medicine cabinet. You won't need any special skills either. All you need is desire and a good mood.

I tried to collect simple but spectacular experiments that will be interesting to children different ages. I prepared for each experience scientific explanation(it’s not for nothing that I studied to be a chemist!). Whether you explain to your 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 make them interested in studying in the future.

Although I chose the safest experiments, they still need to be taken very seriously. It is better to perform all manipulations with gloves and a gown, at a safe distance from children. After all, vinegar and potassium permanganate can cause trouble.

And, of course, when holding 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 It’s not at all difficult to become a funny scientific genius - all you have to do is tousle your hair, put on big glasses and a white coat, get smeared with soot and make a facial expression appropriate to your new status. This is what a typical mad scientist looks like.

Before putting on a science show on children's party(by the way, this can be not only a birthday, but also any other holiday), all experiments should be done in the absence of children. Rehearse so that there are no unpleasant surprises later. You never know what can go wrong.

Children's experiments can be carried out without a festive occasion - just so that you can spend time with your child in an interesting and useful way.

Choose the experiences you like best and create a holiday script. In order not to overburden children with science, even if it is 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: to do this, you need to pour shampoo into the water and shake it well. Can foam form on its own without shaking and also be colored?

Ask the children what they think foam is. What does it consist 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 you need some substance from 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 environment. But gas can be produced in another way - through a chemical reaction.

Option 1

• hydroperite tablets;
• potassium permanganate;
• liquid soap;
• water;
• glass vessel with a narrow neck (preferably beautiful);
• cup;
• hammer;
• tray.

Setting up the experiment

1. Using a hammer, crush the hydroperite tablets into powder and pour it into the flask.
2. Place the flask on a tray.
3. Add liquid soap and water.
4. Prepare an aqueous solution of potassium permanganate in a glass and pour it into the 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 influence 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 into your hands and do not give it to children.

Option 2

Another gas, for example carbon dioxide, is also suitable for foam formation. You can paint the foam any color you want.

To carry out the experiment you will need:

• plastic bottle;
• soda;
• vinegar;
• food coloring;
• liquid soap.

Setting up the experiment

1. Pour vinegar into the bottle.
2. Add liquid soap and food coloring.
3. Add baking 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 influence, the soap will begin to foam and lick out of the bottle. The dye will color the foam in the color you choose.

Fun ball

What's a birthday without balloons? Show the children the balloon and ask how to inflate it. The guys, of course, will answer with their mouths. Explain that the balloon is inflated by the carbon dioxide that we exhale. But there is another way to inflate the balloon.

To carry out the experiment you will need:

• soda;
• vinegar;
• bottle;
• balloon.

Setting up the experiment

1. Place a teaspoon of baking soda inside the balloon.
2. Pour vinegar into the bottle.
3. Place the balloon on the neck of the bottle and pour the baking soda into the bottle.

Result and scientific explanation

As soon as soda and vinegar come into contact, a violent chemical reaction will begin, accompanied by the release of carbon dioxide CO 2. balloon will begin to inflate before our eyes.

CH 3 -COOH + Na + − → CH 3 -COO − Na + + H 2 O + CO 2

If you take a smiley ball, it will make an even greater impression on the guys. At the end of the experiment, tie a balloon and give it to the birthday person.

Watch the video for a demonstration of the experience.

Chameleon

Can liquids change color? If yes, why and how? Before doing the experiment, be sure to ask your children these questions. Let them think. They will remember how water turns colors when you rinse a brush with paint in it. Is it possible to discolor the solution?

To carry out the experiment you will need:

• starch;
• alcohol burner;
• test tube;
• cup;
• water.

Setting up the experiment

1. Pour a pinch of starch into a test tube and add water.
2. Drop some iodine. The solution will turn color blue.
3. Light the burner.
4. Heat the test tube until the solution becomes colorless.
5. Pour into a glass cold water and immerse the test tube in it so that the solution cools and turns blue again.

Result and scientific explanation

When interacting with iodine, the starch solution turns blue, since this produces a dark blue compound I 2 * (C 6 H 10 O 5) n. However, this substance is unstable and, when heated, breaks down again into iodine and starch. When cooled, the reaction goes in the other direction and we again see the solution turning blue. This reaction demonstrates the reversibility of chemical processes and their dependence on temperature.

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 eggshell very fragile and can break at the slightest blow. It would be nice if the eggs didn’t break! Then you wouldn’t have to worry about getting the eggs home when your mom sends you to the store.

To carry out the experiment you will need:

• vinegar;
• raw chicken egg;
• cup.

Setting up the experiment

1. To surprise the children, 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.
2. Show the children a glass with an egg and invite everyone to say a magic spell together: “Tryn-dyrin, boom-burym!” Egg, become rubber!”
3. Remove the egg with a spoon, wipe it with a napkin and demonstrate how it can now become deformed.

Result and scientific explanation

Eggshells are made of calcium carbonate, which dissolves when reacted with vinegar.

CaCO 3 + 2 CH 3 COOH = 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. Watch the video to see what an egg looks like after vinegar.

Secret letter

Children love everything mysterious, and therefore this experiment will certainly seem like real magic to them.

Take an ordinary ballpoint pen and write a secret message from aliens on a piece of paper or draw some kind of secret sign that no one except the guys present can know about.

When the children read what is written there, tell them what it is big secret and the inscription must be destroyed. Moreover, magic water will help you erase the inscription. If you treat the inscription with a solution of potassium permanganate and vinegar, then with hydrogen peroxide, the ink will wash off.

To carry out the experiment you will need:

• potassium permanganate;
• vinegar;
• hydrogen peroxide;
• flask;
• cotton swabs;
• ballpen;
• sheet of paper;
• water;
• paper towels or napkins;
• iron.

Setting up the experiment

1. Draw a picture or message on a piece of paper with a ballpoint pen.
2. Pour some potassium permanganate into the test tube and add vinegar.
3. Soak a cotton swab in this solution and swipe over the inscription.
4. Take another cotton swab, moisten it with water and wash off the resulting stains.
5. Blot with a napkin.
6. Apply hydrogen peroxide to the inscription and blot it again with a napkin.
7. Iron or place under a press.

Result and scientific explanation

After all the manipulations, you will receive a blank sheet of paper, which will greatly surprise the children.

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. To create an acidic environment, our experiment uses acetic acid.

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 the insoluble compound Mn0 2 to a highly soluble manganese (II) salt.

MnO 2 + H 2 O 2 + 2 H + = O 2 + Mn 2+ + 2 H 2 O.

I suggest you watch how the ink disappears in the video.

The power of thought

Before setting up the experiment, ask the children how to extinguish a 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?

To carry out the experiment you will need:

• vinegar;
• soda;
• glasses;
• candles;
• matches.

Setting up the experiment

1. Pour baking soda into a glass and fill it with vinegar.
2. Light some candles.
3. Bring a glass of baking soda and vinegar to another glass, tilting it slightly so that the carbon dioxide produced during the chemical reaction flows into the empty glass.
4. Pass a glass of gas over the candles, as if pouring it on the flame. At the same time, make a mysterious expression on your face and say some incomprehensible spell, for example: “Chickens-borers, moors-pli!” Flame, don’t burn anymore!” Children must think that this is magic. You will reveal the secret after the delight.

Result and scientific explanation

When 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 have the opportunity to collect it in an empty glass, and then “pour” it onto the candles, thereby extinguishing their flame.

How this happens, watch the video.

Part 2. Entertaining physical experiments

Genie strongman

This experiment will allow children to look at their usual action from a different perspective. 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 shake the cork out. Of course, you won't succeed. Ask the children: is there any way to get the cork out without breaking the bottle? Let them say what they think about this.

Since nothing can be used to pick up the cork through the neck, there is only one thing left to do - try to push it out from the inside. How to do this? You can call the genie for help!

The gin used in this experiment will be a large plastic bag. To enhance the effect, you can decorate the bag with colored markers - draw eyes, nose, mouth, hands, some patterns.

So, to conduct the experiment you will need:

• empty wine bottle;
• cork;
• plastic bag.

Setting up the experiment

1. Twist the bag into a tube and insert it into the bottle so that the handles are on the outside.
2. When turning the bottle over, ensure that the cork is on the side of the bag, closer to the neck.
3. Inflate the bag.
4. Carefully begin to pull the package out of the bottle. The cork will come out along with it.

Result and scientific explanation

As the bag is inflated, it expands inside the bottle, expelling air from it. 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 pull 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 will happen if you turn a glass of water upside down. They will answer that the water will pour out. Tell them that this only happens with the “right” glasses. And you have the “wrong” glass from which water does not pour out.

To carry out the experiment you will need:

• glasses of water;
• paints (you can do without them, but this makes the experience more spectacular; it’s better to use acrylic paints– they give more saturated colors);
• paper.

Setting up the experiment

1. Pour water into glasses.
2. Add some color to it.
3. Wet the edges of the glasses with water and place a sheet of paper on top of them.
4. Press the paper firmly against the glass, holding it with your hand, and turn the glasses upside down.
5. Wait a moment until the paper sticks to the glass.
6. Slowly remove your hand.

Result and scientific explanation

Surely all children know that we are surrounded by air. Although we cannot 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 ground 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 the force of surface tension.

In an inverted glass, between its bottom (which is 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 and pulls it down. At the same time, the space between the bottom of the glass and the surface of the water increases. Under conditions of 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. That's why water doesn't pour out of the glass. However, after some time, the glass will lose its magical properties, and the water will still spill out. This is due to the evaporation of water, which increases the pressure inside the glass. When it becomes more atmospheric, the paper will fall off and the water will pour out. But you don’t have to bring it to this point. It will be more interesting this way.

You can watch the progress of the experiment in the video.

Gluttonous bottle

Ask your children if they like to eat. Do they like to eat? glass bottles? No? Don't they eat bottles? But they are wrong. They don’t eat ordinary bottles, but they don’t even mind having a snack with magic bottles.

To carry out the experiment you will need:

• boiled chicken egg;
• bottle (to enhance the effect, the bottle can be painted or embellished in some way, but so that children can see what is happening inside it);
• matches;
• paper.

Setting up the experiment

1. Peel off the shell boiled egg. Who eats eggs in a shell?
2. Set fire to a piece of paper.
3. Throw the burning paper into the bottle.
4. Place the egg on the neck of the bottle.

Result and scientific explanation

When we throw burning paper into a 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.

That's all for now. However, over time I plan to add a few more experiments to the article. At home, you can, for example, conduct experiments with balloons. Therefore, if you are interested this topic, add the site to bookmarks or subscribe to the newsletter 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 include an active hyperlink to this page.

If you have ever conducted home experiments for children and organized a science show, write about your impressions in the comments and attach a photo. It will be interesting!

The scenario for children from 3 to 6 years old involves a program designed for a maximum of 30 minutes, and it is important that the children do not get bored, for this you can hold a general dance, or a general game... In this scenario, one of the options will be presented, convenient for the author, and time-tested. But you can come up with your own that suits you.

List of experiences for the children's program:

Changing colors “light” (for the experiment you need: potato starch, 9% vinegar, ascorbic acid, iodine, three percent hydrogen peroxide)

1) The Bunsen flask inflates the ball (pour vinegar into the Bunsen flask, then add soda, then close the lid... Gas is released, which enters the ball pre-attached to the spout of the flask)
2) Elephant foam “LIGHT” - differs in the concentration of hydrogen peroxide (in this case, peroxide is 37%), liquid soap is used instead of a cleaning agent, and dry yeast is used instead of potassium iodide. The foam is less reactive, heats up less, and does not smell as strong, so you can show it to children at a very close distance.
3) “Diapers in cups” - this experiment is recommended to be carried out very first, since it, in combination with eyeliner (see below), attracts children’s attention to the science show.\
Pour diaper granules into one of three opaque cups, then pour water. We tell the children in advance that the experiment is about attentiveness; now we will guess where our water is. We pour water into this glass, change it several times, ask where the water is, pour water out of all the glasses, but it does not pour out. Then we reveal the secret.
4) STARCH IN WATER. – before this experiment, you need to ask the children if they know what a bulletproof vest is. We talk about this a little, and say that we also have a bulletproof vest, and now we will make it. It is advisable to prepare the substance in advance, as you can overdo it with water, and then the experiment will not work.
5) Foam of the Snake Gorynych. Add most of the liquid soap to a small part of the liquid. We wet our hand with soap, then fill a bubble on our hand from a gas cylinder (there should be a special nozzle on the gas cylinder) and set it on fire. Eyeliner further….
6) Oil-salt-water-pop

Hello, dear friends!!
My name is Professor Alex Reagentovich Kolbochkin, and I just love to blow things up, burst into flames, and share my experiments with my inquisitive friends. I hope there are such inquisitive guys among you?
Children answer reluctantly, embarrassed.
- Is there something I can’t hear?
-ddddddda!!! - they answer louder
- So, let's do it again...
And we ask loudly so that the children understand that they can shout:
-Are there any inquisitive guys here?
-YEEES!!! - the children shout loudly.
And then in a serious voice:
But let’s immediately agree that without my permission we WILL NOT TOUCH ANYTHING WITH OUR HANDS in my scientific laboratory. Agreed?
“Yesss!” the children answer.
-Then let's go!!!
We have a birthday boy here, let's congratulate him with our applause!
We call the birthday boy, say to him the “testaments of Mendeleev,” and the children keep repeating:
I pledge to love order
Be precise, inquisitive and attentive,
Obey your parents and respect your elders.
After this, you can dance a scientific and simple dance.

So, my dear guys, what is the most important thing in science, and in particular in chemistry?
-Safety, accuracy, and care!!! - they answer... And if they don’t answer, then we help them.
- This is very good, and now, before you and I begin to engage in wonderful and magical science, we will check your attentiveness, don’t you agree?
-Yes!!! - the kids answer, and we conduct an experiment
"Diapers in cups"
- Well, guys, I tried very hard to confuse you, but even I, a crazy professor, failed! Now I know for sure that you and I will not get lost in the world of science, and certainly not disappear!!
I already trust you so much that I’m ready to introduce you to my trained flask, Agafona Grigorievna. (showing a Bunsen flask)
Guys, do you have any pets at home that follow commands?
My hand flask can also carry out commands. But since she is a particularly picky person, unlike other trained flasks, she first needs to be treated to something tasty, and then she follows the command. She specializes in inflating balloons.
Let's all ask her to blow up the balloon.
(please bring your children together).
You can also ask the guys to pet Agafona Grigorievna, since “she’s a capricious lady, she may not agree.” After everyone has been stroked or asked “Agathona Grigorievna”
We conduct an experiment. A Bunsen flask inflates a balloon.

You guys have probably already guessed that our “Agafona Grigorievna” is not completely trained, but this was a scientific chemical experiment.
Children answer...
Millions of things happen in our body every second. chemical reactions with transformations of some substances into others, and with changes in colors in a “reduced form, and we will now try to model a small part of them.
Conducting an experiment
Changing colors "light".
Pour a little into one of the three glasses (glass “A”) warm water, and dissolve a tablespoon of starch in it. Pour the same amount of water into the second glass (Glass “B”) and dissolve three tablets in it ascorbic acid. Pour some water into the third glass (Glass “G”), and add a little iodine and two tablespoons of vinegar.
We pour glass “B” into glass “G”, and glass “G” changes color. Next, pour glass “A” into glass “G” and add 5 tablespoons of hydrogen peroxide. A reaction similar to “Egyptian Night” occurs...

So you and I got acquainted with scientific transformations, now we can even make the most real, high-tech, and environmentally friendly body armor for the Ministry of Defense Russian Federation!!! Interesting???
-Yes!!!
Then let's go!!!
We conduct the experiment “STARCH IN WATER”:
Pour the adjusted amount of water into a pre-prepared container with starch to obtain the desired consistency. Starch turns out to be fluid if it is not physically affected, and becomes hard if influenced.
Next, we explain to the guys that the same technology is used to create protective motorcycle uniforms, as well as in body armor. Let's move on!!!
Guys, I have a question for you, just honestly. Who has an elephant at home???
Okay, who has ever seen an elephant? Tell me, do elephants have big teeth?
How much toothpaste do you think is needed to brush his teeth?
I’ll tell you one secret, while I was waiting for you, an elephant ran into our laboratory...
He was in a hurry to get to work at the zoo, so he couldn't be there today. HE said he had run out of toothpaste and had nothing to brush his teeth with.
What happens, friends, when you don’t brush your teeth?
That's right, they start to hurt and give off a bad smell.
The elephant asked me to make toothpaste for him... I thought about this for a long time, and literally a few minutes before you arrived I came up with this experiment:
We are conducting an experiment with Foam for an elephant “LIGHT”.
Next remains the foam of the snake Gorynych.
Here it must be said that not only elephants come to our laboratory... Today, for example, the Serpent Gorynych came to us in person. We quarreled a little and he wanted to burn me, but I stopped his fire scientific method. And from his fire there was this foam left... We show the foam. And we discovered quite interesting properties of this foam:
We are conducting the experiment of Pen Serpent Gorynych.

Next, if there is time left, we conduct an experiment with vegetable oil Oil-salt-water-pop.
The bottom line is this: now you are real scientists, and in honor of the holiday, we will make a science cocktail lantern. If you have a flashlight, even after the foam of the snake gorynych, it looks quite bright:
Pour oil into a glass, then add water - the oil rises to the top. Then we pour salt into the glass and an interesting reaction begins. You can add a little iodine to color the water and drop an effervescent tablet into the glass. After this, you can hold the glass over a flashlight - you get a kind of lamp.