Equipment and reagents: beakers, conical flask, metal stand, porcelain cup, crystallizer, knife, metal tray, test tube racks, test tubes, matches, tweezers, pipettes, handkerchief; water, dry fuel, 3 tablets of calcium gluconate, potassium carbonate, ammonia 25%, hydrochloric acid (conc.), phenolphthalein, sodium metal, alcohol, office glue, ammonium dichromate, potassium dichromate, sulfuric acid, hydrogen peroxide, ferric chloride solutions ( III), KCNS, sodium fluoride.

    Progress of the event

    Chemistry is an interesting and fascinating science. With the help of chemistry, our lives become more interesting and varied.


    Without chemistry, the whole world would become dim.
    We travel, live and fly with chemistry,
    We live in different parts of the Earth,
    We clean, erase, remove stains,
    We eat, we sleep, and we wear our hair.
    We treat with chemicals, glue and sew
    We live side by side with chemistry!

    Although there are no miracles in the world.
    Chemistry provides the answer.
    “There are miracles in the world.
    And, of course, there are countless of them!”

    Do not violate the teachers' advice:

    And even if you are not a coward,

    Do not taste the substances!

    And don’t even think about smelling them.

    Understand that these are not flowers!

    Don't take anything with your hands

    You'll get a burn, blisters!

    Tea and delicious sandwich
    They really want to be in your mouth.
    Do not lie to yourself -
    You can't eat or drink here!
    This, my friend, is a chemical laboratory,
    There are no provisions for food.


    In the flask it’s like marmalade,
    Do not taste the substances!
    Even poison smells sweet.

    In the chemistry room

    Lots of stuff:

    Cones, test tubes,

    Funnel and tripod.

    And there's no need to pull

    I'll waste my pens,

    Otherwise you'll spill it by accident

    Valuable reagent!

    "Pharaoh's Snakes"

    Experiment: put a tablet of dry fuel on a stand, put 3 tablets of calcium gluconate on it and set it on fire. A light gray mass shaped like a snake is formed.

    "Smoke without fire"

    Experiment: (The experiment must be carried out in a well-ventilated area or in a fume hood) pour potassium carbonate into a large flask (300-500 ml) so that it covers the bottom with an even layer, and carefully pour in a 25% ammonia solution to wet it . Then slowly (be careful!) pour a little concentrated of hydrochloric acid(white “smoke” appears). What do we see? There is smoke, but no fire. You see, in life there is no smoke without fire, but in chemistry there is.

    "Flame on the Water"

    Experiment: Add phenolphthalein to a cup of water. Cut a piece of sodium or lithium metal and carefully place it in water. The metal floats on the surface, the hydrogen ignites, and due to the alkali formed, the water turns crimson.

    "Volcano"

    Mighty nature is full of wonders,
    And on Earth they are subject to her alone
    The shining of stars, sunsets and sunrises,
    Gusts of wind and sea surf...
    But we, now you will see for yourself,
    Sometimes we also possess miracles.

    Experiment: pour a heap of ammonium bichromate onto a tray, drop in alcohol, and set it on fire.

    "Fireproof scarf"

    children's answers).

    Our magic carpet has flown away,
    We don’t have self-assembly either,
    There is a scarf, it will tan now,
    But, believe me, it won’t be able to burn.

    Experiment: moisten a scarf in a mixture of glue and water (silicate glue + water = 1:1.5), dry it slightly, then moisten it with alcohol and set it on fire.

    "Orange, lemon, apple"

    Experiment: first, the audience is shown a glass with a solution of potassium dichromate, which orange color. Then, alkali is added, turning “orange juice” into “lemon juice”. Then it is done in reverse: from “lemon juice” - “orange”, for this a little sulfuric acid is added, then a little hydrogen peroxide solution is added and the “juice” becomes “apple”.

    "Healing the Wound"

    There are three vials on the table: “iodine” (FeCl3 solution), “alcohol” (KCNS), “living water” (NaF).

    Here's some more fun for you
    Who gives the hand to be cut off?
    It's a pity to cut off your hand,
    Then we need a patient for treatment!
    We operate without pain.
    There will really be a lot of blood.
    Every operation requires sterilization.
    Help, assistant,
    Give me some alcohol.
    One moment! (gives alcohol- КCNS)

    We will lubricate it generously with alcohol.
    Don't turn around, patient.
    Give me the scalpel, assistant!
    (“scalpel” is a stick dipped in FeCl3)

    Look, just a trickle
    Blood flows, not water.
    But now I'll wipe my hand -
    Not a trace of the cut!
    “iodine” - FeCl3 solution, “alcohol” - KCNS, “living water” - NaF.

    "We are wizards"

    "Colored milk"

View document contents
"Entertaining experiments in chemistry"

FUN EXPERIENCES

in chemistry for children

Target: show interesting experiments in chemistry

Tasks:

    to interest students in studying chemistry;

    give students the first skills in handling chemical equipment and substances.

Equipment and reagents: beakers, conical flask, metal stand, porcelain cup, crystallizer, knife, metal tray, test tube racks, test tubes, matches, tweezers, pipettes, handkerchief; water, dry fuel, 3 tablets of calcium gluconate, potassium carbonate, ammonia 25%, hydrochloric acid (conc.), phenolphthalein, sodium metal, alcohol, office glue, ammonium dichromate, potassium dichromate, sulfuric acid, hydrogen peroxide, ferric chloride solutions ( III), KCNS, sodium fluoride.

Progress of the event

Chemistry is an interesting and fascinating science. With the help of chemistry, our lives become more interesting and varied.

Without the chemistry of life, believe me, no,
Without chemistry, the whole world would become dim.
We travel, live and fly with chemistry,
We live in different parts of the Earth,
We clean, erase, remove stains,
We eat, we sleep, and we wear our hair.
We treat with chemicals, glue and sew
We live side by side with chemistry!

Although there are no miracles in the world.
Chemistry provides the answer.
“There are miracles in the world.
And, of course, there are countless of them!”

But before you start the practical part of the event, listen to the comic safety regulations.

Entering our chemistry room,

Do not violate the teachers' advice:

And even if you are not a coward,

Do not taste the substances!

And don’t even think about smelling them.

Understand that these are not flowers!

Don't take anything with your hands

You'll get a burn, blisters!

Tea and delicious sandwich
They really want to be in your mouth.
Do not lie to yourself -
You can't eat or drink here!
This, my friend, is a chemical laboratory,
There are no provisions for food.

Let the test tube smell like vobla,
In the flask it’s like marmalade,
Do not taste the substances!
Even poison smells sweet.

In the chemistry room

Lots of stuff:

Cones, test tubes,

Funnel and tripod.

And there's no need to pull

I'll waste my pens,

Otherwise you'll spill it by accident

Valuable reagent!

"Pharaoh's Snakes"

In India and Egypt you can watch snakes dancing to the tune of charmers. Let's try to make the “snakes” dance, but our caster will be fire.

Experience: Place a tablet of dry fuel on the stand, put 3 tablets of calcium gluconate on it and set it on fire. A light gray mass shaped like a snake is formed.

"Smoke without fire"

The old saying goes, “There is no smoke without fire,” let’s check it out.

Experience: (The experiment must be carried out in a well-ventilated area or in a fume hood) pour potassium carbonate into a large flask (300-500 ml) so that it covers its bottom with an even layer, and carefully pour in a 25% ammonia solution to wet it. Then slowly (be careful!) pour a little concentrated hydrochloric acid into the flask (white “smoke” appears). What do we see? There is smoke, but no fire. You see, in life there is no smoke without fire, but in chemistry there is.

"Flame on the Water"

Can you cut metal with a knife? Can he swim? Can water burn?

Experience: Add phenolphthalein to a cup of water. Cut a piece of sodium or lithium metal and carefully place it in water. The metal floats on the surface, the hydrogen ignites, and due to the alkali formed, the water turns crimson.

"Volcano"

Mighty nature is full of wonders,
And on Earth they are subject to her alone
The shining of stars, sunsets and sunrises,
Gusts of wind and sea surf...
But we, now you will see for yourself,
Sometimes we also possess miracles.

Experience: pour ammonium bichromate onto a tray, drop some alcohol, and set it on fire.

"Fireproof scarf"

Remember the magical objects from fairy tales ( children's answers).

Our magic carpet has flown away,
We don’t have self-assembly either,
There is a scarf, it will tan now,
But, believe me, it won’t be able to burn.

Experience: moisten the scarf in a mixture of glue and water (silicate glue + water = 1:1.5), dry it slightly, then moisten it with alcohol and set it on fire.

"Orange, lemon, apple"

And now the next magic, from one juice we get another.

Experience: First, the audience is shown a glass with a solution of potassium dichromate, which is orange. Then, alkali is added, turning “orange juice” into “lemon juice”. Then it is done in reverse: from “lemon juice” - “orange”, for this a little sulfuric acid is added, then a little hydrogen peroxide solution is added and the “juice” becomes “apple”.

"Healing the Wound"

There are three vials on the table: “iodine” (FeCl solution 3 ), "alcohol" (KCNS), "living water" (NaF).

Here's some more fun for you
Who gives the hand to be cut off?
It's a pity to cut off your hand,
Then we need a patient for treatment! (the bravest boy is invited)
We operate without pain.
There will really be a lot of blood.
Every operation requires sterilization.
Help, assistant,
Give me some alcohol.
One moment! (gives alcohol- КCNS) We will lubricate it generously with alcohol.
Don't turn around, patient.
Give me the scalpel, assistant!
(“scalpel” is a stick dipped in FeCl 3 )

Look, just a trickle
Blood flows, not water.
But now I'll wipe my hand -
Not a trace of the cut!
“iodine” - FeCl solution 3 , “alcohol” - KCNS, “living water” - NaF.

"We are wizards"

And now you yourself will become wizards. We will now conduct the experiment.

"Colored milk" I suggest you get blue milk. Does this happen in nature? No, but you and I can do it, but you can’t drink it. Combine copper sulfate and barium chloride together.

Dear Guys! So our miracles and entertaining experiments are over. We hope you liked them! If you know chemistry, it will not be difficult for you to unravel the secrets of the “miracles”. Grow up and come to us to study this very interesting science- chemistry. See you again!

Did you know that May 29 is Chemist's Day? Who among us in childhood did not dream of creating unique magic, amazing chemical experiments? It's time to make your dreams come true! Read on quickly and we will tell you how to have fun on Chemist Day 2017, as well as what chemical experiments for children can be easily done at home.


Home volcano

If you are not already attracted, then... Do you want to see a volcanic eruption? Try it at home! To set up a chemical experiment “volcano” you will need soda, vinegar, food coloring, a plastic glass, a glass of warm water.

Pour 2-3 tablespoons of baking soda into a plastic cup, add ¼ cup of warm water and a little food coloring, preferably red. Then add ¼ vinegar and watch the volcano “erupt”.

Rose and ammonia

A very interesting and original chemical experiment with plants can be seen in the video from YouTube:

Self-inflating balloon

Do you want to conduct safe chemical experiments for children? Then you will definitely like the balloon experiment. Prepare in advance: a plastic bottle, baking soda, a balloon and vinegar.

Pour 1 teaspoon of baking soda inside the ball. Pour ½ cup of vinegar into the bottle, then put a ball on the neck of the bottle and make sure that the soda gets into the vinegar. As a result of a violent chemical reaction, which is accompanied by the active release of carbon dioxide, the balloon will begin to inflate.

Pharaoh snake

For the experiment you will need: calcium gluconate tablets, dry fuel, matches or a gas burner. Watch the algorithm of actions on YouTube video:

Colorful magic

Do you want to surprise your child? Hurry up and conduct chemical experiments with color! You will need the following available ingredients: starch, iodine, transparent container.

Mix snow-white starch and brown iodine in a container. The result is an amazing mixture of blue.

Raising a snake

The most interesting home chemical experiments can be carried out using available ingredients. To create a snake you will need: a plate, river sand, powdered sugar, ethyl alcohol, a lighter or burner, baking soda.

Place a pile of sand on a plate and soak it in alcohol. Make a depression in the top of the slide, where you carefully add powdered sugar and soda. Now we set fire to the sand slide and watch. After a couple of minutes, a dark wriggling ribbon that resembles a snake will begin to grow from the top of the slide.

How to conduct chemical experiments with an explosion, see the following video from Youtube:

Who didn't believe in miracles as a child? To have a fun and educational time with your baby, you can try experiments in entertaining chemistry. They are safe, interesting and educational. These experiments will answer many children's “whys” and awaken interest in science and knowledge of the world around us. And today I want to tell you what experiments parents can organize for children at home.

Pharaoh's snake


This experience is based on increasing the volume of mixed reagents. During the burning process, they transform and, wriggling, resemble a snake. The experiment got its name from a biblical miracle when Moses, who came to Pharaoh with a request, turned his rod into a snake.

For the experiment you will need the following ingredients:

  • ordinary sand;
  • ethanol;
  • crushed sugar;
  • baking soda.

We soak the sand in alcohol, then form a small hill out of it and make a depression at the top. After this, mix a small spoon powdered sugar and a pinch of soda, then pour everything into an improvised “crater”. We set fire to our volcano, the alcohol in the sand begins to burn out, and black balls form. They are a product of the decomposition of soda and caramelized sugar.

After all the alcohol has burned out, the pile of sand will turn black and a wriggling “black pharaoh’s snake” will form. This experiment looks more impressive using real reagents and strong acids, which can only be used in a chemical laboratory.

You can do it a little easier and buy a calcium gluconate tablet at the pharmacy. Set it on fire at home, the effect will be almost the same, only the “snake” will quickly collapse.

Magic lamp


In stores you can often see lamps, inside of which a beautiful illuminated liquid moves and shimmers. Such lamps were invented in the early 60s. They work on the basis of paraffin and oil. At the bottom of the device there is a built-in conventional incandescent lamp, which heats the descending molten wax. Part of it reaches the top and falls, the other part heats up and rises, so we see a kind of “dance” of paraffin inside the container.

In order to carry out a similar experience at home with a child, we will need:

  • any juice;
  • vegetable oil;
  • effervescent tablets;
  • beautiful container.

Take a container and fill it more than halfway with juice. Add vegetable oil on top and throw in an effervescent tablet. It begins to “work”, the bubbles rising from the bottom of the glass capture the juice and form a beautiful bubbling in the oil layer. Then the bubbles reaching the edge of the glass burst and the juice falls down. It turns out to be a kind of “circulation” of juice in a glass. Such magic lamps are absolutely harmless, unlike paraffin lamps, which a child can accidentally break and get burned.

Ball and orange: experience for kids


What will happen to a balloon if you drop orange or lemon juice on it? It will burst as soon as the citrus droplets touch it. And you can then eat the orange with your baby. It's very entertaining and fun. For the experiment we will need a couple of balloons and citrus. We inflate them and let the baby drip some fruit juice onto each one and see what happens.

Why does the balloon burst? It's all about the special chemical substance– limonene. It is found in citrus fruits and is often used in the cosmetics industry. When the juice comes into contact with the rubber of the balloon, a reaction occurs, limonene dissolves the rubber and the balloon bursts.

Sweet glass

You can make amazing things from caramelized sugar. In the early days of cinema, edible sweet glass was used in most fight scenes. This is because it is less traumatic for actors during filming and is inexpensive. Its fragments can then be collected, melted and made into film props.

Many people made sugar cockerels or fudge in childhood; glass should be made according to the same principle. Pour water into the pan, heat it up a little, the water should not be cold. After this, add granulated sugar and bring to a boil. When the liquid boils, cook until the mixture gradually begins to thicken and bubbles strongly. The melted sugar in the container should turn into a viscous caramel, which, if lowered into cold water will turn into glass.

Pour the prepared liquid onto a previously prepared baking sheet greased with vegetable oil, cool and the sweet glass is ready.

During the cooking process, you can add dye to it and cast it into some interesting shape, and then treat and surprise everyone around you.

Philosophical nail


This entertaining experience based on the principle of copper plating of iron. Named by analogy with a substance that, according to legend, could turn everything into gold, and was called the philosopher's stone. To conduct the experiment we will need:

  • iron nail;
  • a quarter of a glass of acetic acid;
  • table salt;
  • soda;
  • a piece of copper wire;
  • glass container.

Take a glass jar and pour acid and salt into it and stir well. Be careful, vinegar is harsh bad smell. It can burn the baby's delicate airways. Then we put copper wire into the resulting solution for 10-15 minutes, after some time we lower an iron nail, previously cleaned with soda, into the solution. After some time, we can see that a copper coating has appeared on it, and the wire has become shiny as new. How could this happen?

Copper reacts with acetic acid to form a copper salt, then the copper ions on the surface of the nail exchange places with iron ions and form a coating on the surface of the nail. And the concentration of iron salts in the solution increases.

Copper coins are not suitable for the experiment because this metal itself is very soft, and to make the money stronger, its alloys with brass and aluminum are used.

Copper products do not rust over time; they are covered with a special green coating - patina, which prevents it from further corrosion.

DIY soap bubbles

Who didn't love blowing soap bubbles as a child? How beautifully they shimmer and burst merrily. You can simply buy them in the store, but it will be much more interesting to create your own solution with your child and then blow bubbles.

It should be said right away that the usual mixture of laundry soap and water will not work. It produces bubbles that quickly disappear and are difficult to blow out. Most affordable way To prepare such a substance, mix two glasses of water with a glass of dishwashing detergent. If you add sugar to the solution, the bubbles become stronger. They will for a long time fly and won't burst. And the huge bubbles that can be seen on stage by professional artists are created by mixing glycerin, water and detergent.

For beauty and mood, you can mix food coloring into the solution. Then the bubbles will glow beautifully in the sun. You can create several different solutions and use them in turns with your child. It's interesting to experiment with color and create your own new shade of soap bubbles.

You can also try mixing the soap solution with other substances and see how they affect the bubbles. Maybe you will invent and patent some new type of yours.

Spy ink

This legendary invisible ink. What are they made of? Now there are so many films about spies and interesting intellectual investigations. You can invite your child to play secret agents a little.

The point of such ink is that it cannot be seen on paper with the naked eye. Only by applying special influence, for example, heat or chemical reagents, can you see the secret message. Unfortunately, most recipes for making them are ineffective and such ink leaves marks.

We will make special ones that are difficult to see without special identification. For this you will need:

  • water;
  • spoon;
  • baking soda;
  • any heat source;
  • stick with cotton on the end.

Pour warm liquid into any container, then, stirring, pour in baking soda until it stops dissolving, i.e. the mixture will reach a high concentration. We put a stick with cotton wool at the end there and write something on paper with it. Let's wait until it dries, then bring the sheet to a lit candle or gas stove. After a while, you can see how the yellow letters of the written word appear on the paper. Make sure that the leaf does not catch fire while developing the letters.

Fireproof money

This is a famous and old experiment. For it you will need:

  • water;
  • alcohol;
  • salt.

Take a deep glass container and pour water into it, then add alcohol and salt, stir well until all ingredients dissolve. To set it on fire, you can take ordinary pieces of paper, or if you don’t mind, you can take a banknote. Just take a small denomination, otherwise something may go wrong in the experiment and the money will be spoiled.

Place strips of paper or money in a water-salt solution; after a while they can be removed from the liquid and set on fire. You can see that the flame covers the entire bill, but it does not light up. This effect is explained by the fact that the alcohol in the solution evaporates, and the wet paper itself does not catch fire.

Wish-fulfilling stone


The process of growing crystals is very exciting, but labor-intensive. However, what you get as a result will be worth your time. The most popular is the creation of crystals from table salt or sugar.

Let's consider growing a “wishing stone” from refined sugar. For this you will need:

  • drinking water;
  • granulated sugar;
  • piece of paper;
  • thin wooden stick;
  • small container and glass.

First, let's make the preparation. To do this we need to prepare a sugar mixture. Pour some water and sugar into a small container. Let the mixture boil and cook until it becomes syrupy. Then we lower the wooden stick there and sprinkle it with sugar, this must be done evenly, in this case the resulting crystal will become more beautiful and even. Leave the base for the crystal overnight to dry and harden.

Let's start preparing the syrup solution. Pour water into a large container and add sugar, stirring slowly. Then, when the mixture boils, cook it until it becomes a viscous syrup. Remove from heat and let cool.

We cut out circles from paper and attach them to the end of a wooden stick. It will become the lid on which the wand with crystals is attached. Fill the glass with the solution and lower the workpiece into it. We wait for a week, and the “wishing stone” is ready. If you add dye to the syrup during cooking, it will turn out even more beautiful.

The process of creating crystals from salt is somewhat simpler. Here you just need to monitor the mixture and change it periodically in order to increase the concentration.

First of all, we create a blank. Pour warm water into a glass container and gradually stir, add salt until it stops dissolving. Leave the container for a day. After this time, you can find many small crystals in the glass; choose the largest one and tie it to a thread. Make a new one brine and put the crystal there; it must not touch the bottom or edges of the glass. This may lead to unwanted deformations.

After a couple of days you can notice that he has grown. The more often you change the mixture, increasing the concentration of salt, the faster you can grow your wishing stone.

Glowing tomato


This experiment must be carried out strictly under the supervision of adults, as it uses harmful substances. The glowing tomato that will be created during this experiment should absolutely not be eaten, as it can lead to death or severe poisoning. We will need:

  • regular tomato;
  • syringe;
  • sulfuric matter from matches;
  • bleach;
  • hydrogen peroxide.

We take a small container, put pre-prepared match sulfur there and pour in bleach. We leave all this for a while, after which we draw the mixture into a syringe and inject it inside the tomato with different sides, so that it glows evenly. To start the chemical process, hydrogen peroxide is needed, which we introduce through the trace from the petiole from above. We turn off the lights in the room and we can enjoy the process.

Egg in vinegar: a very simple experiment

This is a simple and interesting ordinary acetic acid. To implement it you will need a boiled chicken egg and vinegar. Take a transparent glass container and place an egg in its shell in it, then fill it to the top with acetic acid. You can see bubbles rising from its surface; this is a chemical reaction taking place. After three days, we can observe that the shell has become soft and the egg is elastic, like a ball. If you shine a flashlight on it, you can see that it glows. Conduct an experiment with raw egg not recommended, as the soft shell may rupture when squeezed.

DIY slime made from PVA


This is a fairly common strange toy from our childhood. Currently it is quite difficult to find it. Let's try to make slime at home. Its classic color is green, but you can use the one you like. Try mixing several shades and creating your own unique color.

To conduct the experiment we will need:

  • glass jar;
  • several small glasses;
  • dye;
  • PVA glue;
  • regular starch.

Let's prepare three identical glasses with solutions that we will mix. Pour PVA glue into the first, water into the second, and dilute starch into the third. First, pour water into the jar, then add glue and dye, stir everything thoroughly and then add starch. The mixture needs to be stirred quickly so that it does not thicken, and you can play with the finished slime.

How to quickly inflate a balloon

Is there a holiday coming up and you need to inflate a lot of balloons? What to do? This unusual experience will help make the task easier. For it we need a rubber ball, acetic acid and regular soda. It must be carried out carefully in the presence of adults.

Pour a pinch of soda into a balloon and place it on the neck of a bottle of acetic acid so that the soda does not spill out, straighten the balloon and let its contents fall into the vinegar. You will see a chemical reaction take place and it will begin to foam, releasing carbon dioxide and inflating the balloon.

That's all for today. Don’t forget, it’s better to conduct experiments for children at home under supervision, it will be safer and more interesting. See you again!

Friends, good afternoon! Agree, how interesting it is sometimes to surprise our little ones! They have such a funny reaction to . It shows that they are ready to learn, ready to absorb new material. The whole world opens up at this moment before them and for them! And we, parents, act as real wizards with a hat from which we “pull out” something incredibly interesting, new and very important!

What will we get out of the “magic” hat today? We have 25 experimental experiments there for children and adults. They will be prepared for babies of different ages to get them interested and involved in the process. Some can be carried out without any preparation, using handy tools that each of us has at home. For others, we will buy some materials so that everything goes smoothly. Well? I wish us all good luck and move forward!

Today will be a real holiday! And in our program:


So let's decorate the holiday by preparing an experiment for a birthday, New Year, March 8, etc.

Ice soap bubbles

What do you think will happen if simple bubbles that are tiny in 4 years loves to inflate them, run after them and burst them, inflate them in the cold. Or rather, straight into a snowdrift.

I'll give you a hint:

  • they will burst immediately!
  • take off and fly away!
  • will freeze!

Whatever you choose, I can tell you right away, it will surprise you! Can you imagine what will happen to the little one?!

But in slow motion it’s just a fairy tale!

I'm complicating the question. Is it possible to repeat the experiment in the summer in order to get a similar option?

Choose answers:

  • Yes. But you need ice from the refrigerator.

You know, although I really want to tell you everything, this is exactly what I won’t do! Let there be at least one surprise for you too!

Paper vs water


The real one is waiting for us experiment. Is it really possible for paper to defeat water? This is a challenge for everyone who plays Rock-Paper-Scissors!

What we need:

  • Paper;
  • Water in a glass.

Cover the glass. It would be good if its edges were a little damp, then the paper would stick. Carefully turn the glass over... The water does not leak!

Let's inflate balloons without breathing?


We have already carried out chemical children's experiments. Remember, the very first room for very little babies was a room with vinegar and soda. So, let's continue! And we use the energy, or rather, the air, that is released during the reaction for peaceful and inflatable purposes.

Ingredients:

  • Soda;
  • Plastic bottle;
  • Vinegar;
  • Ball.

Pour soda into the bottle and fill 1/3 with vinegar. Shake lightly and quickly pull the ball onto the neck. When it is inflated, bandage it and remove it from the bottle.

Such a small experience can show even in kindergarten.

Rain from a cloud


We need:

  • Jar of water;
  • Shaving foam;
  • Food coloring (any color, several colors possible).

We make a cloud of foam. A big and beautiful cloud! Entrust this to the best cloud maker, your child. 5 years. He will definitely make her real!


author of the photo

All that remains is to distribute the dye over the cloud, and... drip-drip! Rain is coming!


Rainbow



Maybe, physics the children are still unknown. But after they make Rainbow, they will definitely love this science!

  • Deep transparent container with water;
  • Mirror;
  • Flashlight;
  • Paper.

Place a mirror at the bottom of the container. We shine a flashlight on the mirror at a slight angle. All that remains is to catch the Rainbow on paper.

Even easier is to use a disk and a flashlight.

Crystals



There is something similar, only this time ready game. But our experience interesting the fact that we ourselves, from the very beginning, will grow crystals from salt in water. To do this, take a thread or wire. And let's keep it for several days in such salty water, where the salt can no longer dissolve, but accumulates in a layer on the wire.

Can be grown from sugar

Lava jar

If you add oil to a jar of water, it will all accumulate on top. It can be tinted with food coloring. But in order for the bright oil to sink to the bottom, you need to pour salt on top of it. Then the oil will settle. But not for long. The salt will gradually dissolve and release beautiful droplets of oil. The colored oil rises gradually, as if a mysterious volcano is bubbling inside the jar.

Eruption


For toddlers 7 years It will be very interesting to blow up, demolish, destroy something. In a word, this is a real element of nature for them. and therefore we create a real, exploding volcano!

We sculpt from plasticine or make a “mountain” from cardboard. We place a jar inside it. Yes, so that its neck fits the “crater”. Fill the jar with soda, dye, warm water and... vinegar. And everything will begin to “explode, lava will rush up and flood everything around!

A hole in the bag is not a problem


This is what convinces book of scientific experiments for children and adults Dmitry Mokhov "Simple Science". And we can check this statement ourselves! First, fill the bag with water. and then we'll pierce it. But we won’t remove what we pierced with (a pencil, a toothpick or a pin). How much water will we leak? Let's check!

Water that doesn't spill



Only such water still needs to be produced.

Take water, paint and starch (as much as water) and mix. The end result is just plain water. You just can't spill it!

"Slippery" egg


In order for the egg to actually fit into the neck of the bottle, you should set fire to the piece of paper and throw it into the bottle. Cover the hole with an egg. When the fire goes out, the egg will slip inside.

Snow in summer



This trick is especially interesting to repeat in warm time of the year. Remove the contents of the diapers and wet them with water. All! The snow is ready! Nowadays such snow is easy to find in children's toys in stores. Ask the seller artificial snow. And there is no need to ruin diapers.

Moving snakes

To make a moving figure we will need:

  • Sand;
  • Alcohol;
  • Sugar;
  • Soda;
  • Fire.

Pour alcohol onto a pile of sand and let it soak. Then pour sugar and baking soda on top and set it on fire! Oh, what a funny this experiment! Children and adults will love what the animated snake gets up to!

Of course, this is for older children. And it looks pretty scary!

Battery train



The copper wire, which we twist into an even spiral, will become our tunnel. How? Let's connect its edges, forming a round tunnel. But before that, we “launch” the battery inside, just attach neodymium magnets to its edges. And consider that you have invented a perpetual motion machine! The locomotive moved on its own.

Candle swing



To light both ends of the candle, you need to clear the wax from the bottom down to the wick. Heat a needle over the fire and pierce the candle in the middle with it. Place the candle on 2 glasses so that it rests on the needle. Burn the edges and shake slightly. Then the candle itself will swing.

Elephant tooth paste


The elephant needs everything big and a lot. Let's do it! Dissolve potassium permanganate in water. Add liquid soap. The last ingredient, hydrogen peroxide, turns our mixture into a giant elephant paste!

Let's drink a candle


For greater effect, color the water bright color. Place a candle in the middle of the saucer. We set it on fire and cover it with a transparent container. Pour water into a saucer. At first the water will be around the container, but then it will all be saturated inside, towards the candle.
Oxygen is burned, the pressure inside the glass decreases and

A real chameleon



What will help our chameleon change color? Cunning! Instruct your little one 6 years decorate in different colors plastic plate. And cut out the chameleon figure yourself on another plate, similar in shape and size. All that remains is to loosely connect both plates in the middle so that the top one, with the cut out figure, can rotate. Then the color of the animal will always change.

Light up the rainbow


Place Skittles in a circle on a plate. Pour water inside the plate. Just wait a little and we get a rainbow!

Smoke rings


Cut off the bottom plastic bottle. And stretch the edge of the cut balloon to get a membrane, as in the photo. Light an incense stick and place it in the bottle. Close the lid. When there is continuous smoke in the jar, unscrew the lid and tap on the membrane. Smoke will come out in rings.

Multicolored liquid

To make everything look more impressive, paint the liquid in different colors. Make 2-3 batches of multi-colored water. Pour water of the same color into the bottom of the jar. Then carefully pour vegetable oil along the wall from different sides. Pour water mixed with alcohol over it.

Egg without shell


Place a raw egg in vinegar for at least a day, some say for a week. And the trick is ready! An egg without a hard shell.
The egg shell contains calcium in abundance. Vinegar reacts actively with calcium and gradually dissolves it. As a result, the egg is covered with a film, but completely without a shell. It feels like an elastic ball.
And the egg will be larger than its original size, as it will absorb some of the vinegar.

Dancing men

It's time to get rowdy! Mix 2 parts starch with one part water. Place a bowl of starchy liquid on the speakers and turn up the bass!

Decorating the ice



We decorate ice figures of different shapes using food paint mixed with water and salt. The salt eats away at the ice and seeps deep, creating interesting passages. Great idea for color therapy.

Launching paper rockets

We empty the tea bags of tea by cutting off the top. Let's set it on fire! Warm air picks up the package!

There are so many experiences that you will definitely find something to do with your children, just choose! And don’t forget to come back again for a new article, which you’ll hear about if you subscribe! Invite your friends to visit us too! That's all for today! Bye!

Not a single person even slightly familiar with the problems modern education, will not argue about the advantages of the Soviet system. However, it also had certain disadvantages, in particular, in the study of natural science subjects the emphasis was often placed on providing a theoretical component, and practice was relegated to the background. Moreover, any teacher will confirm that The best way To arouse a child’s interest in these subjects is to show some spectacular physical or chemical experiment. This is especially important at the initial stage of studying such subjects and even long before that. In the second case, a special kit for chemical experiments, which can be used at home, can be a good help for parents. True, when purchasing such a gift, fathers and mothers must understand that they will also have to take part in classes, since such a “toy” in the hands of a child left unattended poses a certain danger.

What is a chemical experiment

First of all, you need to understand what we are talking about. In general, it is generally accepted that a chemical experiment is a manipulation of various organic and inorganic substances in order to establish their properties and reactions under various conditions. If we're talking about about experiments that are carried out with the aim of arousing in the child a desire to study the world, then they should be spectacular and at the same time simple. In addition, it is not recommended to select options that require special security measures.

Where to begin

First of all, you can tell your child that everything that surrounds us, including his own body, consists of various substances that interact. As a result, one can observe various phenomena: both those to which people have long been accustomed and do not pay attention to them, and very unusual ones. In this case, as an example, we can cite rust, which is a consequence of the oxidation of metals, or smoke from a fire, which is a gas released during combustion various items. Next, you can start showing simple chemical experiments.

"Egg Float"

Very interesting experience can be demonstrated using an egg and an aqueous solution of hydrochloric acid. To carry it out, you need to take a glass carafe or a wide glass and pour a 5% solution of hydrochloric acid into the bottom. Then you need to lower the egg into it and wait a while.

Soon, bubbles of carbon dioxide will appear on the surface of the eggshell, due to the reaction of hydrochloric acid and calcium carbonate contained in the shell, and lift the egg upward. Having reached the surface, the gas bubbles will burst, and the “load” will again go to the bottom of the dish. The process of lifting and diving of the egg will continue until all the eggshells are dissolved in hydrochloric acid.

"Secret Signs"

Interesting chemical experiments can be done with sulfuric acid. For example, using a cotton swab dipped in a 20% sulfuric acid solution, draw figures or letters on paper and wait for the liquid to dry. Then the sheet is ironed with a hot iron and watch as black letters begin to appear. This experience will be even more effective if you hold the piece of paper over a candle flame, but this must be done extremely carefully, trying not to set the paper on fire.

"Fire inscription"

The previous experiment can be done differently. To do this, draw the outline of a figure or letter on a sheet of paper with a pencil and prepare a composition consisting of 20 g of KNO 3 dissolved in 15 ml hot water. Then use a brush to saturate the paper along the pencil lines so that there are no gaps left. As soon as the audience is ready and the sheet is dry, you need to bring a burning splinter to the inscription at only one point. A spark will immediately appear and “run” along the contour of the drawing until it reaches the end of the line.

Surely young viewers will be interested in why this effect is achieved. Explain that when heated, potassium nitrate turns into another substance, potassium nitrite, and releases oxygen, which supports combustion.

"Fireproof handkerchief"

Children will certainly be interested in the experience with “fireproof” fabric. To demonstrate it, dissolve 10 g of silicate glue in 100 ml of water and moisten a piece of fabric or handkerchief with the resulting liquid. Then it is squeezed out and, using tweezers, immersed in a container with acetone or gasoline. Immediately set fire to the fabric with a splinter and watch how the flame “devours” the scarf, but it remains intact.

"Blue Bouquet"

Simple chemical experiments can be very spectacular. We suggest you surprise the viewer by using paper flowers, the petals of which should be coated with glue made from natural starch. Then you need to place the bouquet in a jar, add a few drops of alcohol tincture of iodine to the bottom and close the lid tightly. After a few minutes, a “miracle” will happen: the flowers will turn blue, as iodine vapor will cause the starch to change color.

"Christmas decorations"

An original chemical experience that will give you beautiful jewelry for a mini-Christmas tree, it will work if you use a saturated solution (1:12) of potassium alum KAl(SO 4) 2 with the addition of copper sulfate CuSO 4 (1:5).

First you need to make a figurine frame out of wire, wrap it with white woolen threads and dip them into a pre-prepared mixture. In a week or two, crystals will grow on the workpiece, which should be coated with varnish so that they do not crumble.

"Volcanoes"

A very effective chemical experiment can be achieved if you take a plate, plasticine, baking soda, table vinegar, red dye and dishwashing liquid. Next you need to do the following:

  • divide a piece of plasticine into two parts;
  • roll one into a flat pancake, and from the second mold a hollow cone, at the top of which you need to leave a hole;
  • place the cone on a plasticine base and connect it so that the “volcano” does not allow water to pass through;
  • place the structure on a tray;
  • pour “lava” consisting of 1 tbsp. l. baking soda and a few drops of liquid food coloring;
  • When the audience is ready, pour vinegar into the “mouth” and watch the violent reaction, during which carbon dioxide is released and red foam flows out of the volcano.

As you can see, home chemical experiments can be very diverse, and all of them will interest not only children, but also adults.