Who loved at school laboratory works in chemistry? It was interesting, after all, to mix something with something and get a new substance. True, it didn’t always work out as described in the textbook, but no one suffered because of this, right? The main thing is that something happens, and we see it right in front of us.

If in real life you are not a chemist and you are not faced with much more complex experiments every day at work, then these experiments, which can be done at home, will definitely amuse you, at least.

Lava lamp

For the experience you need:
— Transparent bottle or vase
— Water
- Sunflower oil
- Food coloring
— Several effervescent tablets “Suprastin”

Mix water with food coloring and add sunflower oil. There is no need to stir, and you won’t be able to. When a clear line between water and oil is visible, throw a couple of Suprastin tablets into the container. We look at the lava flows.

Since the density of oil is lower than that of water, it remains on the surface, with the effervescent tablet creating bubbles that carry water to the surface.

Elephant toothpaste

For the experience you need:
- Bottle
— Small cup
— Water
— Dish detergent or liquid soap
- Hydrogen peroxide
— Fast-acting nutritional yeast
- Food coloring

Mix liquid soap, hydrogen peroxide and food coloring in a bottle. In a separate cup, dilute the yeast with water and pour the resulting mixture into the bottle. We look at the eruption.

Yeast produces oxygen, which reacts with hydrogen and is pushed out. Because of soap suds the result is a dense mass erupting from the bottle.

Hot Ice

For the experience you need:
— Capacity for heating
— Transparent glass cup
- Plate
– 200 g baking soda
— 200 ml of acetic acid or 150 ml of its concentrate
— Crystallized salt

Mix acetic acid and baking soda in a saucepan and wait until the mixture stops sizzling. Turn on the stove and evaporate excess moisture until an oily film appears on the surface. Pour the resulting solution into a clean container and cool to room temperature. Then add a crystal of soda and watch how the water “freezes” and the container becomes hot.

Heated and mixed, vinegar and soda form sodium acetate, which when melted becomes aqueous solution sodium acetate. When salt is added to it, it begins to crystallize and generate heat.

Rainbow in milk

For the experience you need:
- Milk
- Plate
— Liquid food coloring in several colors
— Cotton swab
— Detergent

Pour milk into a plate, drip dyes in several places. Soak a cotton swab in detergent and place it in a plate with milk. Let's look at the rainbow.

The liquid part contains a suspension of fat droplets, which, in contact with the detergent, split and rush from the inserted stick in all directions. A regular circle is formed due to surface tension.

Smoke without fire

For the experience you need:
— Hydroperite
— Analgin
— Mortar and pestle (can be replaced with a ceramic cup and spoon)

It is better to do the experiment in a well-ventilated area.
Grind the hydroperite tablets to powder, do the same with analgin. Mix the resulting powders, wait a little, see what happens.

During the reaction, hydrogen sulfide, water and oxygen are formed. This leads to partial hydrolysis with the elimination of methylamine, which interacts with hydrogen sulfide, the suspension of its small crystals resembling smoke.

Pharaoh snake

For the experience you need:
- Calcium gluconate
- Dry fuel
— Matches or lighter

Place several tablets of calcium gluconate on dry fuel and set it on fire. We look at the snakes.

Calcium gluconate decomposes when heated, which leads to an increase in the volume of the mixture.

Non-Newtonian fluid

For the experience you need:

— Mixing bowl
- 200 g corn starch
- 400 ml water

Gradually add water to the starch and stir. Try to make the mixture homogeneous. Now try to roll a ball from the resulting mass and hold it.

The so-called non-Newtonian fluid behaves like a solid when interacting quickly, and like a liquid when interacting slowly.

A small child is not only a perpetual motion machine and a jumper, but also a brilliant inventor and an endless why. Although children's curiosity gives parents a lot of worries, it is in itself very useful - after all, it is the key to the development of the baby. Learning something new is useful not only in the form of lessons, but also in the form of games or experiments. That's what we'll talk about today. Simple physical and chemical experiments do not require special knowledge, special training or expensive materials. They can be held in the kitchen to surprise, entertain the child, open up the whole world to him or simply lift his spirits. The child can prepare and perform almost any experiment independently in your presence. However, in some of the experiments, the main actor It's better to make mom or dad.

Explosion of color in milk

What could be more surprising than the transformation of a familiar thing into an unusual one, when white milk, familiar to everyone, becomes multi-colored?

You will need: whole milk (required!), food coloring different colors, any liquid detergent, cotton swabs, plate.
Work plan:

1. Pour milk into a plate.
2. Add a few drops of each dye to it. Try to do this carefully so as not to move the plate itself.
3. Take a cotton swab, dip it in the product and touch it to the very center of the plate of milk.
4. The milk will begin to move and the colors will begin to mix. A real explosion of color in a plate!

Explanation of the experiment: Milk is made up of molecules different types: fats, proteins, carbohydrates, vitamins and minerals. When detergent is added to milk, several processes occur simultaneously. First, the detergent reduces surface tension, allowing food coloring to move freely across the entire surface of the milk. But the most important thing is that the detergent reacts with the fat molecules in the milk and sets them in motion. This is why skim milk is not suitable for this experiment.

Growing crystals

Everyone knows this experience from childhood - obtaining crystals from salt water. You can, of course, do this with a solution copper sulfate, But children's version- plain table salt.


The essence of the experiment is simple - we lower a colored thread into a salty solution (18 tablespoons of salt per half liter of water) and wait for crystals to grow on it. It will be very interesting. Especially if you take woolen thread or replace it with intricate bristle wire.

Potato becomes a submarine

Has your child already learned to peel and cut potatoes? Will you no longer surprise him with this gray-brown tuber? Of course you will surprise! You need to turn a potato into a submarine!
For this we need one potato tuber, a liter jar and table salt. Pour half a can of water and lower the potatoes. She will drown. Add saturated salt solution to the jar. The potatoes will float. If you want it to be immersed in water again, just add water to the jar. Why not a submarine?
Solution: Potatoes are drowning because... it is heavier than water. Compared to a salt solution, it is lighter, which is why it floats to the surface.

Lemon battery

It’s good to do this experiment with dad so that he can explain in more detail where the electricity in a lemon comes from?

We will need:

• Lemon, thoroughly washed and wiped dry.
• Two pieces of insulated copper wire approximately 0.2-0.5 mm thick and 10 cm long.
• Steel paper clip.
• A light bulb from a flashlight.

Conducting the experiment: First of all, we strip the opposite ends of both wires at a distance of 2-3 cm. Insert a paper clip into the lemon and screw the end of one of the wires to it. We stick the end of the second wire into the lemon 1-1.5 cm from the paperclip. To do this, first pierce the lemon in this place with a needle. Take the two free ends of the wires and attach them to the contacts of the light bulb.
What happened? The light came on!

Glass of laughter

Do you urgently need to finish cooking the soup, but your child is hanging on his feet and dragging him to the nursery? This experience will keep him distracted for a few minutes!
We only need a glass with thin, even walls, filled to the top with water.
Conducting the experiment: take the glass in your hand and bring it to your eyes. Look through it at the fingers of the other hand. What happened?
In the glass you will see very long and thin fingers without brush. Turn your fingers upward, and they will turn into funny short people. Move the glass away from your eyes, and the whole hand will appear in the glass, but small and to the side, as if you had moved your hand.
Look at each other through a glass with your child - and there is no need to go to the laughter room.

Water flows up the napkin

This is a very beautiful experience ideal for girls. We need to take a napkin, cut out a strip, and draw lines of different colors with dots. Then we lower the napkin into a glass with a small amount of water and watch in admiration as the water rises and the dotted lines turn into solid ones.

Miracle rocket from a tea bag

This elementary focus experience is simply a “bomb” for any child. If you are already tired of looking for brilliant entertainment for children, this is what you need!


Carefully open the regular tea bag, place it vertically and set it on fire. The bag will burn to the end, fly high into the air and circle above you. This simple experiment usually causes a storm of delight among both adults and children. And the reason for this phenomenon is the same that makes sparks fly off from a fire. During combustion, a flow of warm air is created, which pushes the ash upward. If you set fire to and extinguish the bag gradually, there will be no flight. By the way, the bag will not always take off if the air temperature in the room is high enough.

Live fish

Another simple experience that can pleasantly surprise not only children, but also friends.
Cut out a fish from thick paper. In the middle of the fish round hole A, which is connected to the tail by a narrow channel AB.

Pour water into a basin and place the fish on the water so that the bottom side is completely wet and the top side remains completely dry. It’s convenient to do this with a fork: placing the fish on the fork, carefully lower it into the water, push the fork deeper and pull it out.
Now you need to drop a large drop of oil into hole A. It is best to use a bicycle oiler for this or sewing machine. If there is no oil can, you can use a machine or vegetable oil into a pipette or cocktail tube: lower one end of the tube into the oil 2-3 mm. Then cover the upper end with your finger and transfer the straw to the fish. Keeping the bottom end exactly above the hole, release your finger. The oil will flow directly into the hole.
Trying to spread over the surface of the water, the oil will flow through channel AB. The fish will not allow it to spread in other directions. What do you think the fish will do under the influence of the oil flowing back? It’s clear: she will swim forward!

Water spell trick

Every child believes that his mother is a sorceress! And in order to prolong this fairy tale longer, you sometimes need to reinforce your magical nature with real “magics”.
Take a jar with a tight-fitting lid. Paint the inside of the lid with red watercolor paint. Pour water into the jar and screw the lid on. During the demonstration, do not turn the jar towards small spectators so that the inside of the lid is visible. Say the spell loudly: “Just like in the fairy tale, make the water red.” With these words, shake the jar of water. The water will wash away the watercolor layer of paint and turn red.

Density Tower

This experiment is suitable for older children or attentive, diligent children.
In this experiment, objects will hang in the thickness of the liquid.
We will need:

• tall narrow glass vessel, for example, an empty, clean half-liter jar of canned olives or mushrooms
• 1/4 cup (65 ml) corn syrup or honey
• food coloring of any color
• 1/4 cup tap water
• 1/4 cup vegetable oil
• 1/4 cup rubbing alcohol
• various small objects, for example, a cork, a grape, a nut, a piece of dry pasta, a rubber ball, a cherry tomato, a small plastic toy, a metal screw

Preparation:

• Carefully pour honey into the vessel so that it takes up 1/4 of the volume.
• Dissolve a few drops of food coloring in water. Fill the vessel halfway with water. Please note: when adding each liquid, pour it very carefully so that it does not mix with the bottom layer.
• Slowly pour the same amount of vegetable oil into the vessel.
• Fill the vessel to the top with alcohol.

Let's begin the scientific magic:

• Announce to the audience that you will now force various items swim. They may tell you that it is easy. Then explain to them that you will make different objects float in liquids at different levels.
• Carefully place small items into the container one at a time.
• Let the audience see for themselves what happened.

Result: different objects will float in the liquid at different levels. Some will “hang” right in the middle of the vessel.
Explanation: This trick is based on the ability various substances sink or float depending on their density. Substances with lower densities float on the surface of denser substances.
The alcohol remains on the surface of the vegetable oil because the density of alcohol is less than the density of oil. Vegetable oil remains on the surface of the water because the density of oil is less than the density of water. In turn, water is a substance less dense than honey or corn syrup, so it remains on the surface of these liquids. When you put objects into a vessel, they float or sink depending on their density and the density of the layers of liquid. The screw has a higher density than any of the liquids in the vessel, so it will fall to the very bottom. The density of pasta is higher than the density of alcohol, vegetable oil and water, but lower than the density of honey, so it will float on the surface of the honey layer. The rubber ball has the lowest density, lower than that of any liquid, so it will float on the surface of the topmost, alcohol, layer.

Grape submarine

Another trick for lovers of sea adventures!


Take a glass of fresh sparkling water or lemonade and drop a grape into it. It is slightly heavier than water and will sink to the bottom. But gas bubbles, similar to small ones, will immediately begin to land on it. air balloons. Soon there will be so many of them that the grape will float up. But on the surface the bubbles will burst and the gas will fly away. The heavy grape will sink to the bottom again. Here it will again become covered with gas bubbles and float up again. This will continue several times until the water runs out. This principle is how a real boat floats up and rises. And fish have a swim bladder. When she needs to submerge, the muscles contract, squeezing the bubble. Its volume decreases, the fish goes down. But you need to get up - the muscles relax, the bubble dissolves. It increases and the fish floats up.

Lotus flowers

Another experiment from the “for girls” series.
Cut out flowers with long petals from colored paper. Using a pencil, curl the petals towards the center. Now lower the multi-colored lotuses into the water poured into the basin. Literally before your eyes, flower petals will begin to bloom. This happens because the paper gets wet, gradually becomes heavier and the petals open.

Where did the ink go?

You can add the following trick to your magic mother’s piggy bank.
Add ink or ink to a bottle of water until the solution is pale blue. Place a crushed tablet there. activated carbon. Close the neck with your finger and shake the mixture. It will brighten before our eyes. The fact is that coal absorbs dye molecules on its surface and it is no longer visible.

"Stop, hands up!"

And this experience is again for the boys - explosive and playful fidgets!
Take a small plastic jar for medicine, vitamins, etc. Pour some water into it, put any effervescent tablet and close it with a lid (non-screw).
Place it on the table, turning it upside down, and wait. Gas released during chemical reaction tablets and water, will push out the bottle, there will be a “rumble” and the bottle will be thrown up.

Secret letter

Each of us has dreamed of becoming a detective or secret agent at least once in our lives. It's so exciting to solve riddles, look for traces and see the invisible.


Let the child make a drawing or inscription with milk on a blank sheet of white paper, lemon juice or table vinegar. Then heat a sheet of paper (preferably over a device without an open flame) and you will see how the invisible turns into visible. The improvised ink will boil, the letters will darken, and the secret letter can be read.

Running toothpicks

If there is nothing to do in the kitchen, and the only toys available are toothpicks, then we can easily put them to use!

To conduct the experiment you will need: a bowl of water, 8 wooden toothpicks, a pipette, a piece of refined sugar (not instant), dishwashing liquid.
1. Place toothpicks in rays in a bowl of water.
2. Carefully lower a piece of sugar into the center of the bowl; the toothpicks will begin to gather towards the center.
3. Remove the sugar with a teaspoon and drop a few drops of dishwashing liquid into the center of the bowl with a pipette - the toothpicks will “scatter”!
What's going on? The sugar absorbs the water, creating a movement that moves the toothpicks towards the center. The soap, spreading over the water, carries along the water particles, and they cause the toothpicks to scatter. Explain to the children that you showed them a trick, and all tricks are based on certain natural physical phenomena which they will study at school.

Vanishing coin

And this trick can be taught to any child over 5 years old, let him show it to his friends!
Props:

• 1 liter glass jar with lid
• tap water
• coin
• assistant

Preparation:

• Pour water into the jar and close the lid.
• Give your assistant a coin so that he can make sure that it is really an ordinary coin and there is no trick in it.
• Have him place the coin on the table. Ask him: “Do you see the coin?” (Of course he will answer yes.)
• Place a jar of water on the coin.
• Say magic words, for example: “Here is a magic coin, here it was, but here it is not.”
• Have your assistant look through the water on the side of the jar and say, can he see the coin now? What will he answer?

Tips for a learned wizard:
You can make this trick even more effective. After your assistant fails to see the coin, you can make it appear again. Say other magic words, for example: “As the coin fell through, so it appeared.” Now remove the jar and the coin will be back in place.
Result: When you place a jar of water on a coin, the coin appears to disappear. Your assistant won't see it.

In contact with

When choosing a gift for my eleven-year-old nephew, I couldn’t do without a book))). It was decided to search among books aimed at distracting the guy as much as possible from modern gadgets. Since he is very smart and inquisitive, I hope that he will spend his summer holidays not bored without a tablet, but with the help of this book and another gift, but that’s another topic. I settled on "Veselye" scientific experiments for children. thirty exciting experiments at home", Egor Belko, Petersburg publishing house.

ISBN 978-5-496-01343-7

Home experiments. There is probably no child who would not be interested and would not want to build an erupting volcano at home or “settle” a cloud in a jar, a rainbow in a glass, push an egg into a bottle or grow a purple daisy. And even more so when everything that is needed for these experiments is at home: on the desktop or in mom’s kitchen, and no special reagents or chemicals are needed. The most “dangerous” means for conducting experiments in this book is perhaps vinegar.

On each spread it is given detailed description experiment: necessary materials, a description of the preparation and progress of the experiment and its scientific explanation, as well as clear and colorful illustrated tips. All experiments are very simple, and everything needed to carry them out can be easily found in every home. From the age of 6-7, I think, you can already give a book to a child for independent study, and before this age you can have a great time with mom, or even better with dad (dads are better able to explain the properties of objects and materials, they somehow it turns out simpler and clearer)))

My daughter is almost 3 years old, but we also love to experiment. For example, we have already done, built an entire installation mountain peak and a volcano erupting in it, and with ice and simply painted with “soda” paints, and then “foamed” the drawing with vinegar or, possibly, a solution of citric acid. The child’s delight is guaranteed, and even if he does not understand the reason for what is happening, he will certainly remember the impressions of what he saw. The goal and task of such activities with a child is to simply and clearly show that any phenomenon in nature or human life has a simple explanation, and we can understand its components; awaken the child’s interest in everything that has a logical scientific explanation, but does not give impetus to curiosity at first sight; teach the child to seek the truth of what is happening; and just to make it clear that from any object or material found in the kitchen, yard or bathroom, you can make something interesting and exciting with your own hands. We have already sent the book to my nephew, but I photographed all the spreads so that I could repeat the experiments with my daughter. There is a lot of information about such things on the Internet now, and if you try, you can compile your own book of “home experiments,” but if you don’t want to spend a lot of time searching or just have a holiday coming up for your beloved children, then this book is worthy of attention.

Remember the most IMPORTANT rule during chemical experiments- never lick a spoon... :). Now seriously...

1. Homemade phone
Take 2 plastic cups(or empty and clean cans without cover). Make a thick cake out of plasticine, slightly larger than the bottom, and place a glass on it. Use a sharp knife to make a hole in the bottom. Do the same with the second glass.

Pull one end of the thread (its length should be about 5 meters) through the hole in the bottom and tie a knot.

Repeat the experiment with the second glass. Voila, the phone is ready!

For it to work, you need to tighten the thread and not touch other objects (including your fingers). By placing a glass to your ear, your baby will be able to hear what you are saying at the other end of the line, even if you are whispering or talking from different rooms. In this experiment, the cups serve as a microphone and speaker, and the thread serves as a telephone wire. The sound of your voice travels along a stretched thread in the form of longitudinal sound waves.

2. Magic avocado
The essence of the experiment: Stick 4 skewers into the fleshy part of the avocado and place this almost alien structure over a transparent container of water - the sticks will serve as a support for the fruit so that it stays half above the water. Place the container in a secluded place, add water every day and watch what happens. After some time, stems will begin to grow from the bottom of the fruit directly into the water.

3. Unusual flowers
Buy a bouquet of white carnations/roses.

The essence of the experiment: Place each carnation in a transparent vase, after making a cut on the stem. After this, add food coloring to each bowl. different color- be patient and very soon the white flowers will turn into unusual shades.

Which one do we do? conclusion? A flower, like any plant, drinks water that flows along the stem throughout the flower through special tubes.

4. Colored bubbles
For this experiment we will need a plastic bottle, sunflower oil, water, food coloring (Easter egg paint).

The essence of the experiment: Fill the bottle with water and sunflower oil in equal proportions, leaving a third of the bottle empty. Add some food coloring and close the lid tightly.

You will be surprised to see that the liquids do not mix - the water remains at the bottom and becomes colored, and the oil rises to the top because its structure is less heavy and dense. Now try to shake our magic bottle - in a few seconds everything will return to normal. And now the final trick - remove it in freezer and we have another trick in front of us: oil and water have changed places!

5. Dancing grape
For this experiment we will need a glass of sparkling water and a grape.

The essence of the experiment: Throw a berry into the water and watch what happens next. The grapes are slightly heavier than water, so they will sink to the bottom first. But gas bubbles will immediately form on it. Soon there will be so many of them that the grape will float up. But the bubbles on the surface will burst and the gas will escape. The berry will again sink to the bottom and again become covered with gas bubbles and float up again. This will continue several times.

6 . Sieve - sippy cup
Let's do a simple experiment. Take a sieve and grease it with oil. Then shake, pour water into the sieve so that it flows inside sieves And, lo and behold, the sieve is filled!

Conclusion: Why doesn't the water flow out? It is held in place by a surface film; it was formed due to the fact that the cells that were supposed to let water through did not get wet. If you run your finger along the bottom and break the film, water will start to flow out.

7. Salt for creativity
We will need a cup of hot water, salt, thick black paper and a brush.

The essence of the experiment: Add a couple of teaspoons of salt to a cup of hot water and stir the solution with a brush until all the salt has dissolved. Continue adding salt, constantly stirring the solution until crystals form at the bottom of the cup. Paint a picture using a salt solution as paint. Leave the masterpiece overnight in a warm and dry place. When the paper dries, the design will appear. The salt molecules did not evaporate and formed crystals, the pattern from which we see.

8. Magic ball
Take a plastic bottle and a balloon.

The essence of the experiment: Place it on the neck and place the bottle in hot water- the ball will inflate. This happened because warm air, consisting of molecules, expanded, the pressure increased and the ball inflated.

9. Volcano at home
We will need baking soda, vinegar and a container for the experiment.

The essence of the experiment: Place a tablespoon of baking soda in a bowl and pour in a little vinegar. Baking soda (sodium bicarbonate) is alkaline, while vinegar is acidic. When they come together, they form the sodium salt of acetic acid. At the same time, carbon dioxide and water will be released and you will get a real volcano - the action will impress any kid!

10. Spinning disk
The materials you will need are very simple: glue, a lid plastic bottle with spout, CD and balloon.

The essence of the experiment: Glue the bottle cap to the CD so that the center of the hole in the cap matches the center of the hole in the CD. Let the glue dry, then proceed to next stage: inflate the balloon, twist its “neck” so that the air does not escape and pull the balloon onto the spout of the lid. Place the disc on a flat table and release the ball. The structure will “float” on the table. Invisible air bag acts as a lubricant and reduces friction between the disk and the table.

11. The magic of scarlet flowers
To experiment, cut out a flower with long petals from paper, then use a pencil to twist the petal towards the center to make curls. Now place your flowers in a container of water (basin, soup bowl). Flowers come to life before your eyes and begin to bloom.

Which one do we do? conclusion? The paper gets wet and becomes heavier.

12. Cloud in a jar.

You will need a 3-liter jar, a lid, hot water, ice.

The essence of the experiment: Pour hot water into a three-liter jar (level - 3-4 cm), cover the jar with a lid/baking tray on top, and place pieces of ice on it.

The warm air inside the jar will begin to cool, condense, and rise upward as a cloud. Yes, this is how clouds form.

And why it's raining? Drops of heated steam rise upward, there they become cold, they reach out to each other, become heavy, large and... return to their homeland again.

13. Can foil dance?

The essence of the experiment: Cut a piece of foil into thin stripes. Then take a comb and comb your hair, then bring the comb closer to the stripes - and they will begin to move.

Conclusion: Particles fly in the air - electric charges, which cannot live without each other; they are attracted to each other, although they are different in nature, like “+” and “-”.

14. Where did the smell go?

You will need: a jar with a lid, corn sticks, perfume.

The essence of the experiment: Take a jar, drop some perfume on the bottom, put corn sticks on top and close with a tight lid. After 10 minutes, open the jar and smell. Where has the smell of perfume gone?

Conclusion: The smell was absorbed by the sticks. How did they do it? Due to the porous structure.

15. Dancing liquid (non-trivial substance)

Prepare simplest option This liquid is a mixture of corn (or regular) starch and water in a 2:1 ratio.

The essence of the experiment: Mix well and start having fun: if you slowly dip your fingers into it, it will be liquid, dripping from your hands, and if you hit it with all your fist, the surface of the liquid will turn into an elastic mass.

Now you can pour this mass onto a baking sheet, place the baking sheet on a subwoofer or speaker and turn on loud dynamic music (or some kind of vibrating noise).

Due to the diversity of sound waves, the mass will behave differently - in some places it becomes denser, in others it does not, which is why a living dancing effect is formed.

Add a few drops of food coloring and you will see how the dancing “worms” are colored in a unique way.

16.

17. Smoke without fire

Place a simple paper napkin on a small saucer, pour a small pile of potassium permanganate on top of it and drop some glycerin there. A few seconds later, smoke will appear and almost immediately you will see a bright blue flash of flame. This occurs when potassium permanganate and glycerin combine to release heat.

18. Can there be fire without matches?

Take a glass and pour some hydrogen peroxide into it. Add a few crystals of potassium permanganate there. Now put the match there. With a slight pop, the match will burst into flames. This occurs due to the active release of oxygen. This way you can explain to your child in practice why windows should not be opened in case of fire. Oxygen will cause the fire to burn even more.

19. Potassium permanganate in combination with water from a puddle

Take water from a standing puddle and add a solution of potassium permanganate there. Instead of the usual purple color, the water will be yellow tint, this occurs due to dead microorganisms in dirty water. In addition, this way the child will more accurately understand why they need to wash their hands before eating.

20. Unusual snakes made of calcium gluconate OR Pharaoh's snake

Buy calcium gluconate at the pharmacy. Carefully take the tablet with tweezers (attention, the child should never do this on their own!), bring it to the fire. When the decomposition of calcium gluconate begins to occur, the release of calcium oxide, carbon dioxide, carbon and water will begin. And it will look as if a black snake will appear from a small white piece.

21. Disappearance of foam in acetone

Polystyrene foam is a gas-filled plastic, and many builders who have come into contact with this material at least once know that acetone cannot be placed next to polystyrene foam. Pour the acetone into a large bowl and begin dropping the foam pieces into the bowl a little at a time. You can see how the liquid will bubble and the foam will disappear as if by magic!

22.

When choosing a gift for my eleven-year-old nephew, I couldn’t do without a book))). It was decided to search among books aimed at distracting the guy as much as possible from modern gadgets. Since he is very smart and inquisitive, I hope that he will spend his summer holidays not bored without a tablet, but with the help of this book and another gift, but that’s another topic. I settled on “Fun scientific experiments for children. 30 exciting experiments at home”, Egor Belko, Petersburg publishing house

ISBN 978-5-496-01343-7

Home experiments. There is probably no child who would not be interested and would not want to build an erupting volcano at home or “settle” a cloud in a jar, a rainbow in a glass, push an egg into a bottle or grow a purple daisy. And even more so when everything that is needed for these experiments is at home: on the desktop or in mom’s kitchen, and no special reagents or chemicals are needed. The most “dangerous” means for conducting experiments in this book is perhaps vinegar.

Each spread provides a detailed description of the experiment: the necessary materials, a description of the preparation and progress of the experiment and its scientific explanation, as well as clear and colorful illustrated tips. All experiments are very simple, and everything needed to carry them out can be easily found in every home. From the age of 6-7, I think, you can already give a book to a child for independent study, and before this age you can have a great time with mom, or even better with dad (dads are better able to explain the properties of objects and materials, they somehow it turns out simpler and clearer)))

My daughter is almost 3 years old, but we also love to experiment. For example, we have already done, we built an entire installation of a mountain peak and a volcano erupting in it, and with ice and simply painted with “soda” paints, and then “foamed” the drawing with vinegar or, perhaps, a solution of citric acid. The child’s delight is guaranteed, and even if he does not understand the reason for what is happening, he will certainly remember the impressions of what he saw. The goal and task of such activities with a child is to simply and clearly show that any phenomenon in nature or human life has a simple explanation, and we can understand its components; awaken the child’s interest in everything that has a logical scientific explanation, but does not give impetus to curiosity at first sight; teach the child to seek the truth of what is happening; and just to make it clear that from any object or material found in the kitchen, yard or bathroom, you can make something interesting and exciting with your own hands. We have already sent the book to my nephew, but I photographed all the spreads so that I could repeat the experiments with my daughter. There is a lot of information about such things on the Internet now, and if you try, you can compile your own book of “home experiments,” but if you don’t want to spend a lot of time searching or just have a holiday coming up for your beloved children, then this book is worthy of attention.