The new salad is a super hit of all feasts. Delicious salads: recipes with photos new. Salad "Men's tears"

Entertaining experiences in the kitchen

We make cottage cheese

Grandmothers, who are over 50 years old, remember well how they themselves made cottage cheese for their children. You can show this process to a child.

Warm the milk by pouring a little lemon juice into it (calcium chloride can also be used). Show the children how the milk immediately curdled into large flakes with whey on top.

Drain the resulting mass through several layers of gauze and leave for 2-3 hours.

You've made a wonderful curd.

Pour syrup over it and offer the child for dinner. We are sure that even those children who do not like this dairy product will not be able to refuse a delicacy prepared with their own participation.

How to make ice cream?

For ice cream you will need: cocoa, sugar, milk, sour cream. You can add grated chocolate, waffle crumbs or small pieces of cookies to it.

Mix two tablespoons of cocoa, one tablespoon of sugar, four tablespoons of milk and two tablespoons of sour cream in a bowl. Add cookie and chocolate crumbs. Ice cream is ready. Now it needs to be cooled down.

Take a larger bowl, put ice in it, sprinkle it with salt, mix. Place a bowl of ice cream on top of ice and cover with a towel to keep heat out. Stir ice cream every 3-5 minutes. If you have enough patience, then after about 30 minutes the ice cream will thicken and you can try it. Tasty?

How does our homemade refrigerator work? It is known that ice melts at a temperature of zero degrees. Salt also delays the cold, does not allow the ice to melt quickly. Therefore, salt ice keeps cold longer. Moreover, the towel does not allow warm air to penetrate to the ice cream. And the result? Ice cream is beyond praise!

Let's beat down the butter

If you live in the summer in the country, then you probably take natural milk from a thrush. Do experiments with milk with the children. Prepare a liter jar. Fill it with milk and refrigerate for 2-3 days. Show the children how the milk has separated into lighter cream and heavy skimmed milk.

Collect the cream in a jar with an airtight lid. And if you have patience and free time, then shake the jar for half an hour in turn with the children until the balls of fat merge together and form oil lumps.

Believe me, children have never eaten such delicious butter.

Homemade lollipops

Cooking is a fun activity. Now let's make homemade lollipops. To do this, you need to prepare a glass of warm water, in which to dissolve as much granulated sugar as it can dissolve. Then take a straw for a cocktail, tie a clean thread to it, attaching a small piece of pasta to the end of it (it is best to use small pasta). Now it remains to put the straw on top of the glass, across, and lower the end of the thread with pasta into the sugar solution. And be patient. When the water from the glass begins to evaporate, the sugar molecules will begin to approach and sweet crystals will begin to settle on the thread and on the pasta, taking on bizarre shapes.

Let your little one taste the lollipop. Tasty?

The same lollipops will be much tastier if jam syrup is added to the sugar solution. Then you get lollipops with different tastes: cherry, blackcurrant and others that he wants.

"Roasted" sugar

Take two pieces of refined sugar. Moisten them with a few drops of water to make it moist, put in a stainless steel spoon and heat it for a few minutes over gas until the sugar melts and turns yellow. Don't let it burn.

As soon as the sugar turns into a yellowish liquid, pour the contents of the spoon onto the saucer in small drops.

Taste your candies with your children. Liked? Then open a candy factory!

Changing the color of cabbage

Together with your child, prepare a salad of finely chopped red cabbage, grated with salt, and pour it with vinegar and sugar. Watch the cabbage turn from purple to bright red. This is the effect of acetic acid.

However, as the salad is stored, it may again turn purple or even turn blue. This happens because acetic acid is gradually diluted with cabbage juice, its concentration decreases and the color of the red cabbage dye changes. These are the transformations.

Why are unripe apples sour?

Unripe apples are high in starch and contain no sugar.

Starch is an unsweetened substance. Let the child lick the starch, and he will be convinced of this. How do you know if a product contains starch?

Make a weak solution of iodine. Drop them in a handful of flour, starch, on a piece of raw potato, on a slice of an unripe apple. The blue color that appears proves that all these products contain starch.

Repeat the experiment with the apple when it is fully ripe. And you will probably be surprised that you will no longer find starch in an apple. But now it has sugar in it. So, fruit ripening is a chemical process of converting starch into sugar.

edible glue

Your child needed glue for crafts, but the jar of glue was empty? Don't rush to the store to buy. Weld it yourself. What is familiar to you is unusual to a child.

Cook him a small portion of thick jelly, showing him each of the steps of the process. For those who do not know: in boiling juice (or in water with jam), you need to pour, mixing thoroughly, a solution of starch diluted in a small amount of cold water, and bring to a boil.

I think the child will be surprised that this glue-jelly can be eaten with a spoon, or you can glue crafts with it.

Homemade sparkling water

Remind your child that he is breathing air. Air is made up of various gases, but many of them are invisible and odorless, making them difficult to detect. Carbon dioxide is one of the gases that make up the air and ... carbonated water. But it can be isolated at home

Take two straws for a cocktail, but of different diameters, so that a few millimeters narrow fits snugly into a wider one. It turned out a long straw, made up of two. Make a vertical hole in the cork of a plastic bottle with a sharp object and insert either end of the straw there.

If there are no straws of different diameters, then you can make a small vertical incision in one and stick it into another straw. The main thing is to get a tight connection.

Pour water diluted with any jam into a glass, and pour half a tablespoon of soda into a bottle through a funnel. Then pour vinegar into the bottle - about one hundred milliliters.

Now you need to act very quickly: stick the cork with a straw into the bottle, and dip the other end of the straw into a glass of sweet water.

What's going on in the glass?

Explain to your child that the vinegar and baking soda have begun to actively interact with each other, releasing carbon dioxide bubbles. It rises up and passes through a straw into a glass with a drink, where bubbles come to the surface of the water. Here is sparkling water and ready.

Drown and eat

Wash two oranges well. Put one of them in a bowl of water. He will swim. And even if you try hard, you won't be able to drown him.

Peel the second orange and put it in the water. Well? Do you believe your eyes? The orange has sunk. How so? Two identical oranges, but one drowned and the other floated?

Explain to the child: "There are many air bubbles in the orange peel. They push the orange to the surface of the water. Without the peel, the orange sinks because it is heavier than the water it displaces."

About the benefits of milk

Oddly enough, the best way to learn why you need to drink milk is to do an experiment with bones.

Take the eaten chicken bones, wash them properly, let them dry. Then pour vinegar in a bowl so that it covers the bones completely, close the lid and leave for a week.

After seven days, drain the vinegar, carefully examine and touch the bones. They have become flexible. Why?

It turns out that calcium gives strength to bones. Calcium dissolves in acetic acid, and the bones lose their hardness.

You want to ask: "What does milk have to do with it?"

Milk is known to be rich in calcium. Milk is useful because it replenishes our body with calcium, which means it makes our bones hard and strong.

How to get drinking water from salt water?

Pour water with your child into a deep basin, add two tablespoons of salt there, stir until the salt dissolves. Place washed pebbles on the bottom of an empty plastic cup so that it does not float up, but its edges should be above the level of the water in the basin. Stretch the film from above, tying it around the pelvis. Squeeze the film in the center over the glass and put another pebble in the recess. Place your basin in the sun.

After a few hours, unsalted, clean drinking water will accumulate in the glass.

This is explained simply: the water begins to evaporate in the sun, the condensate settles on the film and flows into an empty glass. Salt does not evaporate and remains in the pelvis.

Now that you know how to get fresh water, you can safely go to the sea and not be afraid of thirst. There is a lot of water in the sea, and you can always get the purest drinking water from it.

live yeast

A well-known Russian proverb says: "The hut is red not with corners, but with pies." We don't bake pies, though. Although, why not? Moreover, we always have yeast in our kitchen. But first we will show the experience, and then we can take on the pies.

Tell the children that yeast is made up of tiny living organisms called microbes (meaning that microbes can be good as well as bad). When they feed, they emit carbon dioxide, which, mixed with flour, sugar and water, “raises” the dough, making it lush and tasty.

Dry yeast is like little lifeless balls. But this is only until the millions of tiny microbes that dormant in a cold and dry form come to life.

Let's revive them. Pour two tablespoons of warm water into a pitcher, add two teaspoons of yeast to it, then one teaspoon of sugar and stir.

Pour the yeast mixture into the bottle, pulling a balloon over its neck. Place the bottle in a bowl of warm water.

Ask the guys what will happen?

That's right, when the yeast comes to life and starts eating sugar, the mixture will fill with bubbles of carbon dioxide already familiar to children, which they begin to release. The bubbles burst and the gas inflates the balloon.

Is the coat warm?

This experience should be very popular with children.

Buy two cups of paper-wrapped ice cream. Unfold one of them and put on a saucer. And wrap the second one right in the wrapper in a clean towel and wrap it well with a fur coat.

After 30 minutes, unwrap the wrapped ice cream and place it unwrapped on a saucer. Expand and the second ice cream. Compare both portions. Surprised? What about your children?

It turns out that ice cream under a fur coat, in contrast to what is on a silver platter, almost did not melt. So what? Maybe a fur coat is not a fur coat at all, but a refrigerator? Why, then, do we wear it in winter, if it does not warm, but cools?

Everything is explained simply. The fur coat stopped letting the room heat in to the ice cream. And from this, the ice cream in a fur coat became cold, so the ice cream did not melt.

Now the question is also natural: "Why does a person put on a fur coat in the cold?"

Answer: To keep warm.

When a person puts on a fur coat at home, he is warm, but the fur coat does not let heat out into the street, so the person does not freeze.

Ask the child if he knows that there are "fur coats" made of glass?

This is a thermos. It has double walls, and between them - emptiness. Heat does not pass through the void. Therefore, when we pour hot tea into a thermos, it stays hot for a long time. And if you pour cold water into it, what will happen to it? The child can now answer this question himself.

If he still finds it difficult to answer, let him do one more experiment: pour cold water into a thermos and check it in 30 minutes.

Thrust funnel

Can a funnel "refuse" to let water into a bottle? Let's check!

We will need:

2 funnels

Two identical clean dry plastic bottles of 1 liter

Plasticine

Jug of water

Training:
1. Insert a funnel into each bottle.

2. Coat the neck of one of the bottles around the funnel with plasticine so that there is no gap left.

Let's start the science magic!

1. Announce to the audience: "I have a magic funnel that keeps water out of the bottle."

2. Take a bottle without plasticine and pour some water into it through a funnel. Explain to the audience, "This is how most funnels behave."

3. Put a bottle of plasticine on the table.

4. Fill the funnel with water up to the top. See what will happen.

Result:

A little water will flow from the funnel into the bottle, and then it will stop flowing altogether.

Explanation:

Water flows freely into the first bottle. Water flowing through the funnel into the bottle replaces the air in it, which escapes through the gaps between the neck and the funnel. In a bottle sealed with plasticine, there is also air, which has its own pressure. The water in the funnel also has pressure, which is due to the force of gravity pulling the water down. However, the force of air pressure in the bottle exceeds the force of gravity acting on the water. Therefore, water cannot enter the bottle.

If there is at least a small hole in the bottle or plasticine, air can escape through it. Because of this, its pressure inside the bottle will drop, and water will be able to flow into it.

dancing flakes

Some cereals are capable of making a lot of noise. Now we will find out if it is possible to teach rice flakes to jump and dance.

We will need:

Paper towel

1 teaspoon (5 ml) crispy rice flakes

Balloon

Wool sweater

Training:

1. Spread a paper towel on the table.

2. Sprinkle cereal on a towel.

Let's start the science magic!

1. Address the audience like this: "All of you, of course, know how rice flakes can crackle, crunch and rustle. And now I'll show you how they can jump and dance."

2. Inflate the balloon and tie it up.

3. Rub the ball on the wool sweater.

4. Bring the ball to the cereal and see what happens.

Result:
The flakes will bounce and be attracted to the ball.
Explanation:
Static electricity helps you in this experiment. Electricity is called static when there is no current, that is, the movement of charge. It is formed by the friction of objects, in this case a ball and a sweater. All objects are made up of atoms, and each atom contains an equal number of protons and electrons. Protons have a positive charge, while electrons have a negative charge. When these charges are equal, the object is called neutral or uncharged. But there are objects, such as hair or wool, that lose their electrons very easily. If you rub the ball on a woolen thing, some of the electrons will pass from the wool to the ball, and it will acquire a negative static charge.
When you bring a negatively charged ball closer to the flakes, the electrons in them begin to repel from it and move to the opposite side. Thus, the top side of the flakes facing the ball becomes positively charged, and the ball attracts them to itself.
If you wait longer, the electrons will begin to move from the ball to the flakes. Gradually, the ball will become neutral again, and will no longer attract flakes. They will fall back onto the table.

flexible water

In previous experiments, you used static electricity to teach cereal to dance and separate pepper from salt. From this experience you will learn how static electricity affects ordinary water.

We will need:

Water faucet and sink

Balloon

Wool sweater

Training:

To conduct the experiment, choose a place where you will have access to running water. The kitchen is perfect.

Let's start the science magic!

1. Announce to the audience: "Now you will see how my magic will control the water."

2. Open the faucet so that the water flows in a thin stream.

3. Say the magic words to make the water jet move. Nothing will change; then apologize and explain to the audience that you will have to use the help of your magic balloon and magic sweater.

4. Inflate the balloon and tie it up. Rub the ball on the sweater.

5. Say the magic words again, and then bring the ball to a trickle of water. What will happen?

Result:

The jet of water will deflect towards the ball.

Explanation:

The electrons from the sweater during friction pass to the ball and give it a negative charge. This charge repels the electrons that are in the water, and they move to the part of the jet that is farthest from the ball. Closer to the ball, a positive charge arises in the water stream, and the negatively charged ball pulls it towards itself.

For the jet movement to be visible, it must be small. The static electricity that accumulates on the ball is relatively small, and it cannot move a large amount of water. If a trickle of water touches the balloon, it will lose its charge. The extra electrons will go into the water; both the balloon and the water will become electrically neutral, so the trickle will flow smoothly again.

Miracles in the kitchen are six fun experiments specially designed for kids. Together with your child, you can extract electricity with a plug and a lemon and make a light bulb glow. Launch a rocket with baking soda and vinegar. Create a desktop volcano that erupts lava. Your child did not even suspect what miracles can happen in the kitchen!

Miracles in the kitchen: descriptions of experiences

Experiments that can be done with the kit:

1. Vinegar Rocket- make a rocket from the parts that are inside the set and use a chemical reaction to launch it into "space"!

2. desktop volcano Have you ever dreamed of seeing a volcano erupt? Then your dream has come true! After mixing the reagents in the model, watch how the lava flows break out of the vent and tend to the foot of the volcano!

3.candy factory- an experiment for true sweet tooth! Create your own mouth-watering and delicious lollipops, and then eat them with pleasure or share with friends.

4.Fingerprints- want to become an agent 007? Then this and the next experiment is for you! In this experiment, you will learn how to take fingerprints, just like in the movies!

5. invisible ink- with the help of this experiment, you will learn how to write secret messages with invisible ink, and then develop them! Surprise your family and friends!

6. fruit battery- now, with the help of this experience, you can easily explain and clearly show your children how to make a real environmentally friendly clock using the most ordinary fruits for this!

Miracles in the kitchen: what is included in the set

• 1 vinegar rocket
• 1 starter,
• 1 small spoon
• 1 volcano,
• 2 skewers
• 1 fingerprint device,
• 8 forms for fingerprints,
• 1 brush
• 8 sheets for secret messages,
• 2 zinc plates,
• 1 wire
• 1 electronic clock,
• detailed instructions with scientific explanations and interesting facts

You can show chemical experiments and talk about the world of organic and inorganic chemistry to a child while preparing lunch. Elena Kachur's book "Fascinating Chemistry" presents unusual and at the same time simple experiments with "home reagents": soda, citric acid, salt. The main characters of the book are Chevostik and Uncle Kuzya.

acids

Now we will carry out one very interesting chemical reaction. For her, we need lemon juice and a little baking soda. It is in the kitchen of any hostess. We will pour clean water into a transparent glass. Add a pinch of soda to it. Let's mix well.
- The white soda powder has dissolved, the glass is again clear water.
- Not water, but a solution of soda. Add lemon juice to it...
- Ouch! The liquid in the glass began to seethe, transparent bubbles of some kind of gas rise from the bottom.

Chemistry_2.png

Its formula is CO2. C is the abbreviation for the element carbon. O is oxygen.
- And "two" means that next to each carbon atom there are as many as two oxygen atoms.
- Oh yes Chevostik! Correctly!
- Uncle Kuzya, what kind of element is carbon?
- Another good friend of yours. Coal is made up of this element. Graphite is the dark gray center of a simple pencil. And the hardest stone on earth is diamond. But back to our gas. It has a name - carbon dioxide.

uvlekatelnaya_himiya_3d_800.jpg

Oh yes, I know about it! We breathe in oxygen and we breathe out carbon dioxide. You talked about it when we were on a journey to find out how a person works.
- Quite right. And the chemical reactions that release this gas are used by many mothers and grandmothers when they cook delicious pies, pancakes and pancakes.

Chemistry_3.png

Carbon occurs in a wide variety of forms and forms. There is some carbon in man too!
- And why do these goodies have gas, and even carbon dioxide?
- He helps the housewives to make the dough fluffy, airy. They add a special baking powder or baking soda with something acidic to it, and the dough starts to react similar to the one we just observed.
- Gas bubbles remain in the dough, and the pancakes turn out lacy! What a useful gas. Only in our glass they are almost gone.
- The chemical reaction is over. All soda and citric acid have reacted.

Chemistry_4.png

Uncle Kuzya, why did you call lemon juice acid? Because it's sour?
- On the contrary, these acids got their name because of the sour taste. Acids are the name of a group of chemicals. We literally know the taste of some acids: these are oxalic, malic, citric, lactic, acetic acids. The well-known and useful vitamin C is also an acid. Ascorbic.
- Now I will know why sorrel and apples are sour. Because of the acids!
- But most acids have nothing to do with food. And you can’t try them in any case: many acids are very hot, and some are poisonous.
Why do chemists need to study such harmful substances?
- Acids are not harmful at all, they bring great benefits. For example, sulfuric acid is necessary to obtain fertilizers, without which a good crop cannot be grown. Without it, paper, paints, fabrics, shoes, medicines cannot be made. Other acids have a lot of work to do too. We have hydrochloric acid in our stomach, its formula is HCl. This acid helps us digest food.
- Surprising substances these acids. What other groups of substances are there?

We have already talked about oxides. In addition to acids and oxides, there are alkalis. They, like acids, are caustic, they should not be tasted and touched so as not to get burned.
“But they certainly turn out to be something very useful, too.
- For example, detergents and soaps that we use every day. And now I want to tell you how to pacify burning acid and caustic alkali with the help of chemistry. To do this, they need to ... mix.

Chemistry_5.png

Wouldn't that make them twice as dangerous?
- Vice versa! They will turn into a salt solution. The fact is that in any acid there is necessarily a hydrogen atom. And in every alkali there is an inseparable pair: an oxygen atom with a hydrogen atom. If you mix an acid and a base, the hydrogen from the acid combines with the oxygen-hydrogen from the base. And we get a familiar company - two hydrogen atoms and one oxygen.
- Yes, it's H2O! Water! And she's not stingy at all!

Chemistry_6.png

The remaining acid and alkali atoms also combine, and some kind of salt is obtained. Salts are the name of another group of chemicals.
- I'll remember it. Uncle Kuzya, now let's do the following chemical reactions. I liked this activity very much.
- Then I propose to figure out where there are acids and alkalis next to us.
- And how do we do it? If acids cannot be taken by mouth, and alkalis should not be touched?
- Dangerous acids and alkalis are unlikely to be found in our house. And to deal with those that are available, cabbage will help us. True, not ordinary, but red-headed.
- I know her, she has beautiful purple leaves. But how it will help to distinguish acid from alkali is completely incomprehensible to me.
- Now everything will become clear. First we need to squeeze the juice out of the cabbage. Turn on the juicer... Done!
- The juice is dark purple in color.
- Now pour water into a glass, add lemon juice to it, and then add a little red cabbage juice.
- Ah! Purple cabbage juice recolored! He turned red!
Let's continue our research. In another glass, dilute a little soap in water. What do you think, Chevostik, if you add cabbage juice to soapy water, what color will you get?
- Red? Or purple?

Nadezhda Anufrieva
Experiments in the kitchen

1. Boiled or raw egg

Take the child to the kitchen table with two eggs on it. One is raw, the other is cooked. Ask the child how this can be determined?

After the experiment, explain to the child that in a boiled egg the center of gravity is constant and therefore it is spinning, while in a raw egg the internal liquid mass is like a brake, so a raw egg cannot spin.

2. Drying, bagels, bagels

We are in a package of one hundred zeros

We notice with poppy.

Grandma, pour some tea,

Let's eat them for tea.

(Baranki)

Buy dryers, bagels, bagels. Lay them out in front of the child, consider their shape, size, appearance. Offer to taste. Ask your child how they differ and what similarities they have. Do they differ in taste? Why do they have such a smooth, glossy finish and which of the three is the easiest to bite into?

Tell the children that dryers, bagels, bagels are very similar, all have the shape of a ring and are made from wheat dough. But unlike pies, these products are first brewed in hot water, and only then baked. It is thanks to the scalding of the drying, the public, that the bagels acquire a beautiful, smooth, glossy crust. And the crust is a paste released from the dough, scalded with boiling water. Ask the children which of these products lasts the longest? Listen to their reasoning. Tell us that drying is stored the longest - as much as 90 days, bagels - 25 days, and bagels - only 16 hours (in the package - 72 hours).

Explain that after the expiration of the shelf life, the products lose their taste. Therefore, a bagel should be eaten quickly, you can take your time with bagels, and drying can wait for your appetite for almost three months.

3. A cheerful rainbow from the water

Offer your child a bright and exciting experience that does not require a lot of money to show. All you need is sugar, 5 glass cups, food coloring in different colors, a syringe or a simple tablespoon.

Conducting the experiment: add 1 tbsp to the first glass. a spoonful of sugar, in the second glass 2 tablespoons of sugar, in the third - 3, in the fourth - 4. Put them in order, and remember how much sugar is in which glass. Now add 3 tbsp to each glass. spoons of water. Stir. Add a few drops of red paint to the first glass, a few drops of yellow to the second, green to the third, and blue to the fourth. Stir again.

In the first 2 glasses, the sugar will dissolve completely, and in the second two, not completely.

Now take a syringe or just a tablespoon to carefully pour the colored water into the glass.

Add colored water from the syringe to a clean glass. The first bottom layer will be blue, then green, yellow and red. If you pour a new portion of colored water over the previous one very carefully, then the water will not mix, but will separate into layers due to the different sugar content in the water, that is, due to the different density of the water.

What is the secret? The concentration of sugar in each colored liquid was different. The more sugar, the higher the density of the water and the lower this layer will be in the glass. The red liquid with the lowest sugar content, and, accordingly, with the lowest density, will be at the very top.

4. Drown and eat

He looks like a red ball,

Only now it does not rush galloping.

It contains a useful vitamin -

This is ripe...

(orange)

Offer the child an experience with oranges. Take two oranges. Peel one of them and put both fruits in a bowl of cold water. The peeled orange sank, but the unpeeled orange remained on the surface of the water. Let the child express their opinions, why did this happen?

Explain to the child the secret of experience. There are many air bubbles in the orange peel. They are the ones who push the orange out of the water. Without the peel, an orange sinks because it is heavier than water.

5. Clay refrigerator

Take two cups of ice cream. Put one of them on saucers and leave on the table. And cover the second ice cream with a wet clay flower pot. After half an hour, ask the child what he thinks happened to the ice cream under the pot.

Let the child open the pot and see that the ice cream in the clay refrigerator has not melted. Why?

Explain to your child that water evaporates from a wet pot and carries away heat. Therefore, the ice cream under the pot will remain cold.

6. Change the color of cabbage

Here is a new riddle in the garden:

One hundred sheets, not a notebook at all.

(Cabbage)

Invite your child to cook a red cabbage salad together. Grind the cabbage with salt, and pour it with vinegar and sugar. Watch the cabbage turn from purple to bright red. This is the effect of acetic acid. Explain to your child that the lettuce may turn purple or even blue after a while. This happens because acetic acid is gradually diluted with cabbage juice, its concentration decreases and the color of the red cabbage dye changes. These are the transformations

7. Experience with a boiled egg

For this experience you will need:

hard-boiled chicken egg;

Deep cup or glass (any container in which you can place the whole egg);

The essence of the experiment is to place a hard-boiled chicken egg in vinegar. The vinegar will dissolve the egg shell, and the egg itself will turn into a kind of rubber.

Put the egg in a container and completely fill it with vinegar.

Watch the egg. You will see tiny bubbles on its surface. This acetic acid attacks the calcium carbonate found in eggshells. After some time, the eggshell will change its color. After 3 days, remove the egg and rinse it gently with tap water. See what happened. Try pressing on the egg. Check how it will bounce off a hard surface.

For comparison, you can try soaking a raw egg in vinegar for 3-4 days. The egg shell will become soft and elastic. You can lightly squeeze the egg. But we do not recommend that you try to hit it on the floor or other hard surfaces.

8. Where does the pie blush?

Show the children how to make pies: kneading and shaping. After you shape the pies, brush them with egg, tea, milk and butter, and for the sake of experiment, leave a couple of pies unbrushed. Tell the children why the pie is greased. Ask your child if an unoiled pie will blush? Let him express his opinion and explain it.

After the pies are baked, show the child that they have all acquired a blush (darkened). The shades of the blush are different, depending on what it was smeared with.

Explain that the surface of the pie heats up quickly in the oven. Some of the moisture (milk or water used for the dough) quickly evaporates from the surface of the cake. Therefore, its upper layer dehydrates (loses water, the temperature rises higher (the cake becomes hotter). In this case, sugar caramelization, already familiar to children, occurs and a ruddy brownish crust forms on the pie.

9. Why did the sausage burst?

For this experiment, prepare a pot of hot water and two sausages. Remove the cellophane from them. Pierce one of the sausages with a fork in several places, and leave the other whole. Release the sausages into the water, and after the allotted time put them on a plate. Ask the child if both sausages burst or did the pierced one remain intact? Explain to the child why sausages burst and tell them that sausages contain not only meat and spices, but also starch. Check purchased sausages for the presence of starch. Have the child drop the iodine solution on the product to be tested. The sausage turned blue - it means that starch is present in it. Explain to the child that the grains of starch swelled when heated in water, it became crowded in the shell, and they tore it apart. Now the child can understand why the sausage burst.

10. Sweet Potato

Buried in the ground in May

And they didn’t take out a hundred days,

And they began to dig in the fall

Not one was found, but ten.

(potato)

Tell the children that potatoes are boiled in salt water. But it turns out that potatoes can be sweet.

Let's check.

Take 2 potato tubers, put them in a plastic bag and put it in the freezer for 1 hour.

After an hour, take the potatoes out of the refrigerator and boil them together with regular potatoes. When the potatoes are cooked, try them with your child.

I wonder if potatoes taste different? Do frozen potatoes really taste sweet? Why has the taste of potatoes changed so much? What happened to the potatoes?

These changes are associated with starch already familiar to children. Explain to the children that when frozen, starch turns into sugar, so the taste of potatoes changes, becomes sweet. We try to keep the potatoes from freezing so that they do not acquire a sweetish taste.