Scientific experiments for children. Interesting experiences for children

The experiments at home, which we will now talk about, are very simple, but extremely entertaining. If your child is just getting acquainted with the nature of various phenomena and processes, such experiences will look like real magic for him. But it's not a secret for anyone that it is best to present complex information to children in a playful way - this will help to consolidate the material and leave vivid memories that will be useful in further learning.

Explosion in still water

Discussing possible experiments at home, first of all we will talk about how to make such a mini-explosion. You will need a large vessel filled with ordinary tap water(for example, it could be three-liter bottle). It is desirable that the liquid settle in a quiet place for 1-3 days. After that, carefully, without touching the vessel itself, drop a few drops of ink into the very middle of the water from a height. They will sprawl beautifully in the water, as if in slow motion.

Balloon that inflates itself

This is another interesting experience that can be carried out by exercising at home. In the ball itself, you need to pour a teaspoon of ordinary baking soda. Next, you need to take an empty plastic bottle and pour 4 tablespoons of vinegar into it. The ball must be pulled over its neck. As a result, the soda will pour into the vinegar, a reaction will occur with the release of carbon dioxide, and the balloon will inflate.

Volcano

With the same baking soda and vinegar, you can make a real volcano in your house! You can even use a plastic cup as a base. 2 tablespoons of soda are poured into the "vent", pour it with a quarter cup of heated water and add a little dark food coloring. Then it remains only to add a quarter cup of vinegar and watch the "eruption".

"Colored" magic

Experiments at home, which you can demonstrate to your child, also include unusual color changes with various substances. A striking example of this is the reaction that occurs when iodine and starch are combined. By mixing brown iodine and pure white starch, you get a liquid ... a bright blue hue!

fireworks

What other experiments can be done at home? Chemistry provides a huge field for activity in this regard. For example, you can make bright fireworks right in the room (but better in the yard). A little potassium permanganate must be crushed into a fine powder, and then take a similar amount of charcoal and also grind it. After thoroughly mixing coal with manganese, add iron powder there. This mixture pour into a metal cap (an ordinary thimble will do) and hold it in the flame of the burner. As soon as the composition heats up, a whole rain of beautiful sparks will begin to crumble around.

soda rocket

And finally, let's talk about chemical experiments at home, where the simplest and most affordable reagents are involved - vinegar and sodium bicarbonate. IN this case you will need to take a plastic film cassette, fill it with baking soda, and then quickly pour in 2 teaspoons of vinegar. The next step is to put the lid on the makeshift rocket, put it upside down on the ground, stand back and watch it take off.

My personal experience teaching chemistry showed that such a science as chemistry is very difficult to study without any initial knowledge and practice. Schoolchildren very often run this subject. I personally observed how a student of the 8th grade at the word "chemistry" began to frown, as if he had eaten a lemon.

Later it turned out that because of dislike and misunderstanding of the subject, he skipped school in secret from his parents. Certainly, school program is designed in such a way that the teacher should give a lot of theory at the first chemistry lessons. Practice, as it were, fades into the background precisely at the moment when the student cannot yet independently realize whether he needs this subject in the future. This is primarily due to the laboratory equipment of schools. In big cities, things are better now with reagents and instruments. As for the province, as well as 10 years ago, and at the present time, many schools do not have the opportunity to conduct laboratory classes. But the process of studying and fascination with chemistry, as well as with other natural sciences, usually begins with experiments. And it is no coincidence. Many famous chemists, such as Lomonosov, Mendeleev, Paracelsus, Robert Boyle, Pierre Curie and Maria Sklodowska-Curie (schoolchildren also study all these researchers in physics classes) have already started experimenting since childhood. The great discoveries of these great people were made in home chemical laboratories, since chemistry classes at institutes were available only to wealthy people.

And, of course, the most important thing is to interest the child and convey to him that chemistry surrounds us everywhere, so the process of studying it can be very exciting. Homes are here to help. chemical experiments. Observing such experiments, one can further look for an explanation of why things happen this way and not otherwise. And when on school lessons the young researcher will come across similar concepts, the teacher's explanations will be more understandable to him, since he will already have his own own experience conducting home chemical experiments and the knowledge gained.

It is very important to start science studies with the usual observations and real life examples that you think will be the best for your child. Here are some of them. Water is Chemical substance, consisting of two elements, as well as gases dissolved in it. Man also contains water. We know that where there is no water, there is no life. A person can live without food for about a month, and without water - only a few days.

River sand is nothing but silicon oxide, and also the main raw material for glass production.

A person himself does not suspect it and carries out chemical reactions every second. The air we breathe is a mixture of gases - chemicals. In the process of exhalation, another complex substance is released - carbon dioxide. We can say that we ourselves are a chemical laboratory. You can explain to the child that washing hands with soap is also a chemical process of water and soap.

An older child who, for example, has already begun to study chemistry at school, can be explained that almost all elements of the periodic system of D. I. Mendeleev can be found in the human body. In a living organism, not only all chemical elements are present, but each of them performs some biological function.

Chemistry is also medicines, without which at present many people cannot live even a day.

Plants also contain the chemical chlorophyll, which gives the leaf its green color.

Cooking is hard chemical processes. Here you can give an example of how the dough rises when yeast is added.

One of the options for getting a child interested in chemistry is to take an individual outstanding researcher and read the story of his life or watch an educational film about him (films about D.I. Mendeleev, Paracelsus, M.V. Lomonosov, Butlerov are now available).

Many believe that real chemistry is harmful substances, experimenting with them is dangerous, especially at home. There are many very exciting experiences that you can do with your child without harming your health. And these home chemical experiments will be no less exciting and instructive than those that come with explosions, pungent odors and puffs of smoke.

Some parents are also afraid to conduct chemical experiments at home due to their complexity or lack of necessary equipment and reagents. It turns out that you can get by with improvised means and those substances that every housewife has in the kitchen. You can buy them at your nearest household store or pharmacy. Test tubes for home chemical experiments can be replaced with pill bottles. Reagents can be stored glass jars, for example, from baby food or mayonnaise.

It is worth remembering that the dishes with reagents must have a label with the inscription and be tightly closed. Sometimes the tubes need to be heated. In order not to hold it in your hands when heated and not get burned, you can build such a device using a clothespin or a piece of wire.

It is also necessary to allocate several steel and wooden spoons for mixing.

You can make a stand for holding test tubes yourself by drilling through holes in the bar.

To filter the resulting substances, you will need a paper filter. It is very easy to make it according to the diagram given here.

For children who do not yet go to school or are studying in elementary grades, setting up home chemical experiments with their parents will be a kind of game. Most likely, such a young researcher will not yet be able to explain some individual laws and reactions. However, it is possible that just such an empirical way of discovering the surrounding world, nature, man, plants through experiments will lay the foundation for the study of natural sciences in the future. You can even arrange original competitions in the family - who will have the most successful experience and then demonstrate them at family holidays.

Regardless of the age of the child and his ability to read and write, I advise you to have a laboratory journal in which you can record experiments or sketch. A real chemist must write down a work plan, a list of reagents, sketches of instruments and describes the progress of work.

When you and your child just begin to study this science of substances and conduct home chemical experiments, the first thing to remember is safety.

For this you need to follow the following rules security:

2. It is better to allocate a separate table for conducting chemical experiments at home. If you do not have a separate table at home, then it is better to conduct experiments on a steel or iron tray or pallet.

3. It is necessary to get thin and thick gloves (they are sold in a pharmacy or hardware store).

4. For chemical experiments, it is best to buy a lab coat, but you can also use a thick apron instead of a dressing gown.

5. Laboratory glassware should not be used for food.

6. In home chemical experiments, there should be no cruelty to animals and violation of the ecological system. Acidic chemical waste should be neutralized with soda, and alkaline with acetic acid.

7. If you want to check the smell of a gas, liquid or reagent, never bring the vessel directly to your face, but, holding it at some distance, direct, waving your hand, the air above the vessel towards you and at the same time smell the air.

8. Always use small amounts of reagents in home experiments. Avoid leaving reagents in a container without an appropriate inscription (label) on the bottle, from which it should be clear what is in the bottle.

The study of chemistry should begin with simple chemical experiments at home, allowing the child to master the basic concepts. A series of experiments 1-3 allow you to get acquainted with the basic aggregate states of substances and the properties of water. To begin with, you can show a preschooler how sugar and salt dissolve in water, accompanying this with an explanation that water is a universal solvent and is a liquid. Sugar or salt are solids that dissolve in liquids.

Experience number 1 "Because - without water and neither here nor there"

Water is a liquid chemical substance composed of two elements as well as gases dissolved in it. Man also contains water. We know that where there is no water, there is no life. A person can live without food for about a month, and without water - only a few days.

Reagents and equipment: 2 test tubes, soda, citric acid, water

Experiment: Take two test tubes. Pour into them equal amounts soda and citric acid. Then pour water into one of the test tubes, and not into the other. In a test tube in which water was poured, carbon dioxide began to be released. In a test tube without water - nothing has changed

Discussion: This experiment explains the fact that many reactions and processes in living organisms are impossible without water, and water also accelerates many chemical reactions. Schoolchildren can be explained that an exchange reaction has taken place, as a result of which carbon dioxide has been released.

Experience number 2 "What is dissolved in tap water"

Reagents and equipment: clear glass, tap water

Experiment: Pour into a clear glass tap water and put it in a warm place for an hour. After an hour, you will see settled bubbles on the walls of the glass.

Discussion: Bubbles are nothing but gases dissolved in water. IN cold water gases dissolve better. As soon as the water becomes warm, the gases cease to dissolve and settle on the walls. A similar home chemical experiment also makes it possible to acquaint the child with the gaseous state of matter.

Experience No. 3 “What is dissolved in mineral water or water is a universal solvent”

Reagents and equipment: test tube, mineral water, candle, magnifying glass

Experiment: Pour mineral water into a test tube and slowly evaporate it over a candle flame (the experiment can be done on a stove in a saucepan, but the crystals will be less visible). As the water evaporates, the walls of the test tube will remain small crystals, All of them different shapes.

Discussion: Crystals are salts dissolved in mineral water. They have a different shape and size, since each crystal wears its own chemical formula. With a child who has already begun to study chemistry at school, you can read the label on mineral water, which indicates its composition and write the formulas of the compounds contained in mineral water.

Experiment No. 4 "Filtration of water mixed with sand"

Reagents and equipment: 2 test tubes, funnel, paper filter, water, river sand

Experiment: Pour water into a test tube and dip a little river sand into it, mix. Then, according to the scheme described above, make a filter out of paper. Insert a dry, clean test tube into a rack. Slowly pour the sand/water mixture through a filter paper funnel. River sand will remain on the filter, and you will get clean water in a tripod tube.

Discussion: Chemical experience allows us to show that there are substances that do not dissolve in water, for example, river sand. The experience also introduces one of the methods of cleaning mixtures of substances from impurities. Here you can introduce the concepts of pure substances and mixtures, which are given in the 8th grade chemistry textbook. In this case, the mixture is sand with water, the pure substance is the filtrate, and river sand is the sediment.

The filtration process (described in Grade 8) is used here to separate a mixture of water and sand. To diversify the study of this process, you can delve a little into the history of cleaning drinking water.

Filtration processes were used as early as the 8th and 7th centuries BC. in the state of Urartu (now it is the territory of Armenia) for the purification of drinking water. Its inhabitants carried out the construction of a water supply system with the use of filters. A thick cloth was used as filters and charcoal. Similar systems of intertwined drainpipes, clay canals, equipped with filters were also on the territory of the ancient Nile among the ancient Egyptians, Greeks and Romans. Water was passed through such a filter several times through such a filter, eventually many times, eventually achieving best quality water.

One of the most interesting experiments is growing crystals. The experiment is very clear and gives an idea of ​​many chemical and physical concepts.

Experience number 5 "Grow sugar crystals"

Reagents and equipment: two glasses of water; sugar - five glasses; wooden skewers; thin paper; pot; transparent cups; food coloring (the proportions of sugar and water can be reduced).

Experiment: Experience should begin with preparation sugar syrup. We take a pan, pour 2 cups of water and 2.5 cups of sugar into it. We bet on medium fire and, stirring, dissolve all the sugar. Pour the remaining 2.5 cups of sugar into the resulting syrup and cook until completely dissolved.

Now let's prepare the embryos of crystals - sticks. Scatter a small amount of sugar on a piece of paper, then dip the stick in the resulting syrup, and roll it in sugar.

We take the pieces of paper and pierce a hole in the middle with a skewer so that the piece of paper fits snugly against the skewer.

Then pour hot syrup in transparent glasses (it is important that the glasses are transparent - so the process of crystal ripening will be more exciting and visual). The syrup must be hot or the crystals will not grow.

You can make colored sugar crystals. To do this, add a little food coloring to the resulting hot syrup and stir it.

The crystals will grow in different ways, some quickly and some may take longer. At the end of the experiment, the child can eat the resulting lollipops if he is not allergic to sweets.

If you don't have wooden skewers, then the experiment can be carried out with ordinary threads.

Discussion: A crystal is a solid state of matter. It has a certain shape and a certain number of faces due to the arrangement of its atoms. Crystalline substances are substances whose atoms are arranged regularly, so that they form a regular three-dimensional lattice, called a crystal. Crystals of a number of chemical elements and their compounds have remarkable mechanical, electrical, magnetic and optical properties. For example, diamond is a natural crystal and the hardest and rarest mineral. Due to its exceptional hardness, diamond plays a huge role in technology. Diamond saws cut stones. There are three ways to form crystals: crystallization from a melt, from a solution, and from a gas phase. An example of crystallization from a melt is the formation of ice from water (after all, water is molten ice). An example of crystallization from solution in nature is the precipitation of hundreds of millions of tons of salt from sea ​​water. In this case, when growing crystals at home, we are dealing with the most common methods of artificial growing - crystallization from a solution. Sugar crystals grow from saturated solution with slow evaporation of the solvent - water or with a slow decrease in temperature.

The following experience allows you to get at home one of the most useful crystalline products for humans - crystalline iodine. Before conducting the experiment, I advise you to watch with your child a short film “The life of wonderful ideas. Smart iodine. The film gives an insight into the benefits of iodine and unusual story his discovery, which will be remembered for a long time by the young researcher. And it is interesting because the discoverer of iodine was an ordinary cat.

The French scientist Bernard Courtois during the years of the Napoleonic wars noticed that in products obtained from ash seaweed, which were thrown onto the coast of France, there is some substance that corrodes iron and copper vessels. But neither Courtois himself nor his assistants knew how to isolate this substance from the ashes of algae. Chance helped speed up the discovery.

On my own small factory for the production of saltpeter in the city of Dijon, Courtois was going to conduct several experiments. There were vessels on the table, one of which contained an alcoholic tincture of seaweed, and the other a mixture of sulfuric acid and iron. On the shoulders of the scientist sat his beloved cat.

There was a knock on the door, and the frightened cat jumped down and ran away, brushing the flasks on the table with its tail. The vessels broke, the contents mixed, and suddenly a violent chemical reaction began. When a small cloud of vapors and gases settled, the surprised scientist saw some kind of crystalline coating on the objects and debris. Courtois began to explore it. Crystals to anyone before this unknown substance were called "iodine".

So a new element was discovered, and Bernard Courtois's domestic cat went down in history.

Experience No. 6 "Obtaining iodine crystals"

Reagents and equipment: tincture of pharmaceutical iodine, water, a glass or a cylinder, a napkin.

Experiment: We mix water with tincture of iodine in the proportion: 10 ml of iodine and 10 ml of water. And put everything in the refrigerator for 3 hours. During cooling, the iodine will precipitate at the bottom of the glass. We drain the liquid, take out the iodine precipitate and put it on a napkin. Squeeze with napkins until the iodine begins to crumble.

Discussion: This chemical experiment is called extraction or extraction of one component from another. In this case, the water extracts the iodine from the spirit lamp solution. Thus, the young researcher will repeat the experience of the cat Courtois without smoke and beating dishes.

Your child will already learn about the benefits of iodine for disinfecting wounds from the movie. Thus, you show that there is an inextricable link between chemistry and medicine. However, it turns out that iodine can be used as an indicator or analyzer of the content of another beneficial substance- starch. The following experience will introduce the young experimenter to a separate very useful chemistry- analytical.

Experience No. 7 "Iodine-indicator of starch content"

Reagents and equipment: fresh potatoes, pieces of banana, apple, bread, a glass of diluted starch, a glass of diluted iodine, a pipette.

Experiment: We cut the potatoes into two parts and drip diluted iodine on it - the potatoes turn blue. Then we drip a few drops of iodine into a glass of diluted starch. The liquid also turns blue.

We drip with a pipette iodine dissolved in water on an apple, banana, bread, in turn.

Watching:

The apple didn't turn blue at all. Banana - slightly blue. Bread - turned blue very much. This part of the experiment shows the presence of starch in various products.

Discussion: Starch reacts with iodine to give blue color. This property gives us the ability to detect the presence of starch in various foods. Thus, iodine is, as it were, an indicator or analyzer of starch content.

As you know, starch can be converted into sugar, if you take an unripe apple and drop iodine, it will turn blue, since the apple is not yet ripe. As soon as the apple ripens, all the starch contained will turn into sugar and the apple does not turn blue at all when treated with iodine.

The following experience will be useful for children who have already started studying chemistry at school. It introduces concepts such as chemical reaction, compound reaction, and qualitative reaction.

Experiment No. 8 "Flame coloring or compound reaction"

Reagents and equipment: tweezers, cookware edible salt, spirit lamp

Experiment: Take with tweezers a few large crystals table salt table salt. Let's hold them over the flame of the burner. The flame will turn yellow.

Discussion: This experiment makes it possible to carry out a chemical combustion reaction, which is an example of a compound reaction. Due to the presence of sodium in the composition of table salt, during combustion, it reacts with oxygen. As a result, a new substance is formed - sodium oxide. The appearance of a yellow flame indicates that the reaction has passed. Such reactions are qualitative reactions to compounds containing sodium, that is, it can be used to determine whether sodium is present in a substance or not.

A chemist is a very interesting and multifaceted profession, uniting many different specialists under its wing: chemists, chemical technologists, analytical chemists, petrochemists, chemistry teachers, pharmacists and many others. We decided together with them to celebrate the upcoming Chemist Day 2017, so we chose some interesting and impressive experiments in the field under consideration, which even those who are as far from the profession of a chemist as far as possible can repeat. The best chemistry experiments at home - read, watch and remember!

When is Chemist's Day celebrated?

Before we begin to consider our chemical experiments, let us clarify that the Chemist's Day is traditionally celebrated on the territory of the states of the post-Soviet space at the very end of spring, namely, on the last Sunday of May. This means that the date is not fixed: for example, in 2017 Chemist's Day is celebrated on May 28th. And if you work in the chemical industry, or study a specialty from this area, or are otherwise directly related to chemistry on duty, then you have every right to join the celebration on this day.

Chemical experiments at home

And now let's get down to the main thing, and we begin to perform interesting chemical experiments: it is best to do this together with young children, who will definitely perceive what is happening as a magic trick. Moreover, we tried to select such chemical experiments, the reagents for which can be easily obtained at a pharmacy or a store.

Experience No. 1 - Chemical traffic light

Let's start with a very simple beautiful experience, which received such a name by no means in vain, because the liquid participating in the experiment will change its color just to the colors of the traffic light - red, yellow and green.

You will need:

• indigo carmine;
• glucose;
• caustic soda;
• water;
• 2 clear glass containers.

Don't let the names of some of the ingredients scare you - you can easily buy glucose in tablets at a pharmacy, indigo carmine is sold in stores as a food coloring, and you can find caustic soda in a hardware store. It is better to take containers tall, with a wide base and a narrower neck, for example, flasks, so that it is more convenient to shake them.

But what is interesting about chemical experiments - there is an explanation for everything:

• Mixing glucose with caustic soda, i.e. sodium hydroxide, we got an alkaline solution of glucose. Then, mixing it with a solution of indigo carmine, we oxidize the liquid with oxygen, with which it was saturated during the transfusion from the flask - this is the reason for the appearance of green color. Further, glucose begins to work as a reducing agent, gradually changing color to yellow. But by shaking the flask, we again saturate the liquid with oxygen, allowing chemical reaction go through this circle again.

How interesting it looks live, you will get an idea from this short video:

Experience No. 2 - A universal indicator of acidity from cabbage

Children love interesting chemical experiments with colorful liquids, it's no secret. But we, as adults, responsibly declare that such chemical experiments look very spectacular and curious. Therefore, we advise you to conduct another "color" experience at home - a demonstration amazing properties red cabbage. It, like many other vegetables and fruits, contains anthocyanins - natural dyes-indicators that change their color depending on the pH level - i.e. the degree of acidity of the environment. This property of cabbage is useful to us in order to obtain further multi-colored solutions.

What we need:

• 1/4 red cabbage;
• lemon juice;
• baking soda solution;
• vinegar;
• sugar solution;
• drink type "Sprite";
• disinfectant;
• bleach;
• water;
• 8 flasks or glasses.

Many substances on this list are quite dangerous, so be careful when doing simple chemistry experiments at home, wear gloves, goggles if possible. And do not let children get too close - they can knock over the reagents or the final contents of the colored cones, even want to try them, which should not be allowed.

Let's get started:

And how do these chemical experiments explain the color changes?

• The fact is that light falls on all objects that we see - and it contains all the colors of the rainbow. Moreover, each color in the spectrum beam has its own wavelength, and molecules of different shapes, in turn, reflect and absorb these waves. The wave that is reflected from the molecule is the one that we see, and this determines what color we perceive - because other waves are simply absorbed. And depending on what substance we add to the indicator, it begins to reflect only rays of a certain color. Nothing complicated!

A slightly different version of this chemical experiment, with fewer reagents, see the video:

Experience number 3 - Dancing jelly worms

We continue to do chemical experiments at home - and we will conduct the third experiment on all our favorite jelly sweets in the form of worms. Even adults will find it funny, and children will be completely delighted.

Take the following ingredients:

• a handful of jelly worms;
• vinegar essence;
• ordinary water;
• baking soda;
• glasses - 2 pcs.

When choosing the right candies, opt for smooth gooey worms, without sugar sprinkles. So that they are not heavy and move more easily, cut each candy lengthwise into two halves. So, we begin interesting chemical experiments:

1. Make a solution in one glass warm water and 3 tablespoons of baking soda.
2. Put the worms in there and hold them there for about fifteen minutes.
3. Fill another deep glass with essence. Now you can slowly throw the jelly into the vinegar, watching how they begin to move up and down, which in some ways looks like a dance:

Why is this happening?

• It's simple: baking soda, in which the worms are impregnated for a quarter of an hour - this is sodium bicarbonate, and the essence is an 80% solution acetic acid. When they react, water, carbon dioxide in the form of small bubbles, and the sodium salt of acetic acid are formed. Exactly carbon dioxide the worm grows in the form of bubbles, rises up, and then falls when they burst. But the process is still going on, causing the candy to rise on the resulting bubbles and descend until it is complete.

And if you are seriously interested in chemistry, and want Chemist's Day to become yours in the future professional holiday, then you will probably be curious to watch the following video, which tells in detail about the typical everyday life of chemistry students and their exciting educational and scientific activities:

Take it, tell your friends!

Read also on our website:

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Entertaining physics in our presentation will tell you why in nature there cannot be two identical snowflakes and why the driver of an electric locomotive backs up before starting off, where the largest reserves of water are located and what invention of Pythagoras helps fight alcoholism.

Choosing a gift for an eleven-year-old nephew, I could not do without a book))). It was decided to search among the books aimed at the maximum distraction of the guy from modern gadgets. Since he is very quick-witted and inquisitive with us, I hope that he will spend his summer holidays not boring without a tablet, but with the help of this book and another gift, but that's another topic. I settled on "Fun science experiments for children. 30 exciting experiments at home", Yegor Belko, publishing house Peter.

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 after all, or grow a purple chamomile. 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 and chemicals are needed. The most “dangerous” experiment in this book is probably vinegar.

At each turn 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 you need to carry them out can be easily found in every home. From the age of 6-7, I think, it is already possible to give a book to a child for independent study, and until this age, you can have a great time with your mother, and even better with your dad (dads are better able to explain the properties of objects and materials, they somehow easier and more understandable

My daughter is almost 3 years old, but we love to experiment too. For example, we have already done, built a whole 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, with a solution of citric acid. The delight of the child 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 purpose and task of such activities with a child is to simply and easily show that there is a simple explanation for any phenomenon of nature or human life, and we can still understand its components; awaken the child's interest in everything that has a logical scientific explanation, but does not give an impulse 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, in the yard or in the 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 to repeat the experiments with my daughter. There is a lot of information about such things on the net now, and if you try, you can make your own book of “home experiments”, but if you don’t want to spend a lot of time searching or just a holiday is on the nose of your favorite kids, then this book is worthy of attention.

If you want to arouse interest in science in your children, and the teacher at school can’t cope with this (but in fact he just doesn’t care), then it’s not necessary to hit the child on the head with a book or hire tutors. You, as a responsible parent, can conduct interesting and colorful scientific experiments right at home with the help of improvised means.

A little fantasy, and entertainment for the children who came to your child's birthday is ready.

1. Walking on chicken eggs

Even though eggs look very fragile, their shells are stronger than they appear. If the pressure is evenly distributed on the shell, then it can withstand very large loads. This can be used to show the kids a fun ball-walking trick and explain to them how it works.

Although we assume that the experience will be successful, it doesn’t hurt to play it safe, so it’s better to cover the floor with oilcloth or spread out garbage bags. Place a couple of trays of eggs on top, making sure none of them are defective or cracked. Also make sure that the eggs are evenly spaced, otherwise the load will not be evenly distributed.

Now you can gently stand on the eggs with bare feet, trying to distribute your weight evenly. The same principle is used in walking on nails or glass, but this should not be repeated with children. Don't repeat at all.

2. Non-Newtonian fluid

Most liquids on the planet practically do not change their viscosity with a change in the force that is applied to them. However, there are liquids that become almost solid when the force increases, and they are called non-Newtonian. You can make them right at home from improvised means. Show this experience to your child and he will be happy.

To make a non-Newtonian fluid, pour a glass of starch into a deep bowl, fill it with water in a ratio of 1:1. You can add food coloring for beauty. Start all this slowly mix until the mixture turns into a homogeneous mass.

If you slowly scoop up such a liquid with your hand, then it will simply drain through your fingers. But as soon as you apply force to it at speed or hit it hard, it immediately becomes hard. A great toy will come out for the next few hours for your child.

3. Jumping coin

A very interesting experience, as well as a trick if you want to convince others of your paranormal abilities. For this experiment at home, we need a regular bottle, as well as a coin that is slightly larger in diameter than the neck.

Chill the bottle in the refrigerator, or even better in freezer. After that, moisten its neck with water and put a coin on top. For effect, you can put your hands on the bottle, warming it. The air inside the bottle will begin to expand and exit through the neck, tossing a coin into the air.

4. Volcano at home

The combination of baking soda and vinegar is win-win if you decide to impress the kids. Just mold a small volcano out of plasticine or clay on a plate, and pour a few teaspoons of soda into its hole, pour some warm water and add red food coloring for entourage. After that, pour into the vent a small amount of vinegar and observe the reaction.

5. Lava Falls

Very effective and simple scientific experience, which allows children to demonstrate the principle of the interaction of liquids with different masses and densities.
Take a tall, narrow container (a flower vase or just plastic bottle). Pour several glasses of water into a vessel and a glass of vegetable oil. Add bright food coloring to make the experience more visual and prepare a tablespoon of salt.

At first, the oil will float on the surface of the vessel, since it has a lower density. Start slowly pouring the salt into the vessel. The oil will begin to sink to the bottom, but when it reaches it, the salt will be freed from the viscous liquid, and the oil particles will begin to rise again, like grains of hot lava.

6. Money doesn't burn

This experience is suitable for wealthy people who only have to burn money. A great trick to surprise kids and adults alike. Of course, there is a risk of failing the performance, so respect the time frame.

Take any bill (depending on your capabilities) and soak it in a salted solution of alcohol and water in a 1: 1 ratio. Make sure that the bill is completely soaked, after which you can remove it from the liquid. Fix the bill in some holder and set it on fire.

Alcohol boils at a fairly low temperature and begins to evaporate much faster than water. Therefore, all the fuel will evaporate before the bill itself lights up.

7. Experience with colorful milk

For this fun experience we need fat milk, some food coloring different colors And detergent.

Pour the milk into a bowl and add a few drops of food coloring in different parts of the container. Take a drop of detergent on the tip of your finger or soak a cotton swab with it and touch the surface of the milk right in the center of the plate. Watch how effectively the dyes begin to mix.

As you may have guessed, detergent and grease are incompatible things, and when you touch the surface, a reaction will start that will make the molecules move.