Experiments in the kitchen with milk. Fun experiences for little fidgets

Design and experimental activities in the senior group "Milk"

Kostenko Larisa Anatolyevna, senior educator.
Place of work: MKDOU "Podgorensky kindergarten No. 1"
Objective of the project: creation of conditions for the development of experimental activities of children in interaction with the family.
Project objectives:
Help children learn that milk is in many foods.
Build research skills.
To develop the cognitive interest of children in research activities, the desire to learn new things.
To develop and improve the cognitive interest of the family in the process of experimentation, establishing a causal relationship, the ability to draw conclusions.
To develop the emotional and value attitude of preschoolers to the world around them together with their parents.
Involve parents in the work to expand children's ideas about the importance of milk for the body.
To cultivate the ability to work in a team, the desire to share information, to participate in joint experimental activities.

Project type: cognitive - research, medium-term.
Project participants: children of the senior group; parents of pupils;
senior educator, group educator.
The relevance of the project. Milk is an essential and indispensable product of baby food. In terms of its chemical composition and biological properties, it occupies an exceptional place among animal products used in the nutrition of children of all age groups. But not all children are happy to drink milk and eat dishes based on milk and dairy products (cereals, milk soups, cottage cheese casseroles, cheese, sandwiches with butter). Strengthening parent-child relationships in the process of experimental and search activities, both in kindergarten and at home.
Problem. Preschool children do not understand the importance of milk and dairy products in the development of the body.
Motivation: Why does a person need milk?
Expected results:
Children learn that milk is an ingredient in many foods.
Research skills will be developed.
Children will have an interest in research activities, a desire to learn new things.
The cognitive interest of the family will develop and improve in the process of experimentation.
The emotional and valuable attitude of preschoolers to the world around them will develop together with their parents.
Involving parents in cognitive research will help children understand the importance of milk and dairy products in the development of the body.
The ability to work in a team, the desire to share information, to participate in joint experimental activities in kindergarten and at home are brought up.
Project stages
Preparatory:
- Conducting a conversation with parents "Formation of experimental research activity of preschoolers in joint activities with the family."
- Familiarization of parents with a corner of experimental activities in the group.
- Collection of information about milk together with parents.
- Selection of works of art about milk.
- Selection of experiments with milk.
- Collecting packages of dairy products for the exhibition.
Basic:
- Excursion to the store "Department of dairy products".
- Carrying out the GCD "The importance of milk in human life."
- Experiments with milk: "Comparison of milk and water", "Mixing milk with other products", "fermentation of milk", "Rainbow in milk".
Final:
- Making an exhibition of crafts made from packages of dairy products, made together with parents.
- Making models of a glass with tubes indicating the composition of milk: fats, proteins, carbohydrates and minerals.
- Competition of fairy tales about milk compiled at home together with parents.
- Preparation of the presentation of the project.
Equipment for experimental activities: Containers for experiments, milk, tea, coffee, instant cocoa, water, pictures, tables.
Excursion to the store "Department of dairy products"
"Milk is an amazing food prepared by nature itself."
Ivan Pavlov

Tasting of dairy products

Directly - educational activities
"The Importance of Milk in Human Life"

There are many useful vitamins and substances in milk.
Drink fresh milk so that caries disappears.
So that the bones are strong, the head does not hurt.
The mood to always be cheerful.
Exhibition of packaging and crafts from boxes of dairy products

Conducting experiments
Experience No. 1 "Comparison of milk and water"

Material: a glass of milk and water.

- What is the difference between milk and water?

Dip a teaspoon into a glass of water and milk.
- In which glass do we see a spoon?
Place a picture behind a glass of milk and water.
Through which glass do we see the picture?
- We smell milk and water. What can we say?

The water is clear, but the milk is not. Water has no smell, but milk does.
Experiment No. 2 "Mixing milk with other products"
"An empty head does not reason: the more experience, the more capable it is of reasoning."
P. P. Blonsky

We all need white water.
From white water, do whatever you want.

Material: a glass of milk, tea, coffee.
Statement of the research problem:
Will the milk change in color and taste?
Predicting the result and performing the experiment.
Pour tea and coffee into glasses with milk.
- What happens to milk?
- Has the color, taste, smell changed?
Fixing the results of the experiment and conclusion.
Mixing milk with other products, the color, smell, taste changes.
Experience No. 3 "fermentation of milk"

Material: a glass of milk, a slice of rye bread.
Statement of the research problem:
- How to get kefir?
Predicting the result and performing the experiment.
Put a piece of rye bread in a glass of milk and leave it in a warm place for several hours. Let's see what happens to milk?
Fixing the results of the experiment and conclusion.
When adding rye bread to milk and leaving it for several hours in a warm place, kefir is obtained.

Experience 4 "Getting yogurt"
Material: a glass of kefir, jam (any).
Statement of the research problem:
- What will we get if we add jam to kefir?
Predicting the result and performing the experiment.
Add jam to a glass of kefir and mix well. Let's taste it, what happened?
Fixing the results of the experiment and conclusion.
When adding jam to kefir, we get yogurt.

There is nothing better in the world
than milk and a glass of yogurt ...

Milk, milk!
We all love milk!
Milk is a wonderful product, and, of course, healthy.
Cheese, cottage cheese, yogurt and kefir are made from it.

Milk is very useful
Both for adults and kids.
Porridge, yogurt and sour cream
They eat with a big spoon.

To get yogurt
It is necessary to put berries in kefir.
Then we'll beat him up.
Now the yogurt is ready!
Experience 5 "Rainbow in milk"
Material: a glass of milk, a plate for the experiment, paints (gouache) yellow, red, blue, detergent, cotton swab.
Statement of the research problem:
- How to get a rainbow on milk?
Predicting the result and performing the experiment.
Pour milk into a bowl. Add red paint to the center of the plate, then blue and yellow. We dip a cotton swab into the detergent and dip into the center of the plate with milk and paint.
Fixing the results of the experiment and conclusion.
When you add detergent, the paint diverges on the plate in the form of a rainbow.

Results of the implementation of experimental activities:
Project presentation.
The presentation of the project was held in the form of a thematic lesson, which was attended by the children of the group and kindergarten teachers.
Positive results of the project.
During the project, children learned about the importance of milk and dairy products for the development of humans and other mammals. In the course of project activities, children's speech activity increased, the ability to compare according to various criteria, draw conclusions, and their interest in knowing the world around them increased.
During the experimental activity, children:
Instilled an interest in research skills.
Developed mental operations.
Stimulated cognitive activity, curiosity.
Activated the perception of familiarization with natural phenomena. 19 Aug 2012, Posted by admin

Prize-winner (2nd place) of the Regional competition of research works and creative projects of preschoolers and primary schoolchildren "I am a researcher" in 2010

Research

"Home experimentation with milk"

Researcher: Pupil of MDOU No. 3 "Buratino" Energetik, Novoorsky District, Orenburg Region Sitmukhambetova Assel(6 years)

Chapter 1 Why did I get interested in milk?

My grandmother has a cow Doll. I know where milk comes from. But I thought they only drink milk. Nadezhda Nikolaevna told me that I was mistaken. It turns out that milk can be used to cook porridge, bake pancakes, cook various other dairy products. And what products are made from milk, she did not say. Nadezhda Nikolaevna offered to start an investigation herself and find out about them.

Chapter 2 Gathering information about milk

First I decided to find out: What is milk? Is it good for a person? What are dairy products?

I conducted a survey among the guys, found out in the store what dairy products are. They called me : kefir, butter, cheese, cottage cheese, varenets, curdled milk, bifidok, cream, yogurt, sour cream.

Nurse Nadezhda Alekseevna said that milk is the most useful food product for humans, because it contains a whole vitamin complex(complex - a lot of vitamins that together well affect the human body). I asked myself the question: How do vitamins get into milk? and put forward hypothesis “Vitamins are added to milk by people. Or they get into milk through cow food.”. Then I thought, and decided that people can eat vitamins anyway, without milk. Means through the grass and hay that the cow eats .

Chapter 3

I decided to experiment with milk. My teacher told me that other dairy products are obtained by adding bacteria to the milk, mixing it with other foods, or changing the storage temperature of the milk.

Experience #1. I poured into 2 cans of fresh whole milk. I put one jar in the cold, put the other in heat. And I decided to observe how milk changes in the cold and in the heat? I looked after 2 days. In the cold, the milk did not change, only became cold. In the warmth, the milk turned sour, it became thick, it does not flow well, a little with flakes. I tasted it: the taste changed, became sour, but tasty. Nadezhda Nikolaevna said that now it is called not milk, but curdled milk. I added jam to yogurt, it turned out yogurt.

I concluded: In the cold, milk does not change, it is stored. When warm, milk sours and turns into a new food product - yogurt. If you add jam to curdled milk, you get yogurt.

Experience number 2. I have a question: What will happen to curdled milk if it is heated even more? I put the curdled milk on the fire, brought it to a boil and turned off the gas. Thick flakes appeared in the curdled milk and a yellow liquid separated. Nadezhda Nikolaevna offered to strain it through a colander. The water was glassy and a thick mass remained. I tried and it's cottage cheese.

I concluded: To get cottage cheese, you need to heat yogurt to a boil and strain.

Cheese is made from cottage cheese. This is what I saw in a dairy. Cottage cheese is boiled in milk, then filtered, butter, soda are added and boiled again. Then they are laid out in molds and left to cool.

Experience No. 3. Mom and I drank tea with cream. I thought that the cow also gives the cream. But mom said that cream is separated from milk by a special smart machine that called a separator . I tried and I succeeded. Separator divided separately cream(full milk) from return(processed, non-fat milk). I brought the cream to the kindergarten to show everyone. The cream stood for 2 days, and became very thick, it is even difficult to put a spoon into it. I didn't know what to do with them. Nadezhda Nikolaevna suggested knocking them down with a whisk, a mixer, a mortar. I divided them into 3 parts. One part was knocked down with a whisk, the second part was knocked down with a mixer, the third part was knocked down with a mortar. In all cups it turned out oil.

I concluded: Cream can be separated from low-fat milk separator. If you churn heavy cream, you get butter. If there is a lot of thick cream, then the housewives churn butter in a home churn.

Experience No. 4.I decided to find out what will turn out with milk, if it add bacteria . I learned about bacteria in the store by reading the recipes on the packages of dairy products.

It turns out that if you add special lactic bacteria to boiled chilled milk, then the milk will turn into bifidok, varenets or kefir. . I bought them at the store, made them as directed in the recipe, and after 2 days I had new dairy products: kefir, varenets, bifidok.

An experiment is an invention. I invented a new dairy product myself. I added various fresh fruits and berries to fresh village milk and beat with a mixer. It turns out great milkshake. Added sugar for taste. I want to treat you to a milkshake, which I will prepare right in front of you. I called this cocktail “Strawberry Fantasy”.

Chapter 4. Conclusions

In the process of experimenting with milk, I came to the conclusion:

1. Milk is the healthiest food for humans.

2. You can experiment with milk and get new dairy products: yogurt, sour cream, cottage cheese, cheese, butter, curdled milk and others.

3. I liked experimenting. Later I want to experiment with vegetables and fruits.

Chapter 5 Helpful Dairy Tips

I interviewed grandmothers - neighbors about how best to store dairy products. They have a lot of experience. Got " Helpful Dairy Tips:

1. To keep dairy products from spoiling longer, they must be kept in the dark.

2. If, before boiling, add half a spoonful of sugar per 1 liter of milk to milk, boil, cool, put uncovered, then such milk will not turn sour even without a refrigerator for 2-3 days.

3. It is better to boil milk in a saucepan with a thick bottom so that the milk does not burn.

4. Dairy products quickly absorb foreign odors, so they should not be kept near odorous products.

5. If there is no refrigerator, the cheese should be stored wrapped in a cloth soaked in salt water.

6. Mustard is better preserved if it is diluted with milk instead of water.

7. When preparing mashed potatoes, it is better to use hot milk: mashed potatoes turn gray from cold milk.

8. If the milk is burnt, do not stir it. Pour immediately into another bowl so that the smell of burning does not remain.

9. It is better to cover the flooded place of runaway milk with a wet newspaper, then the smell of burnt milk will not spread throughout the kitchen.

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We have a lot of things in our kitchen with which you can make interesting experiments for children. Well, for myself, to be honest, to make a couple of discoveries from the category of “how I didn’t notice this before.”

website chose 9 experiments that will delight children and raise many new questions in them.

1. Lava lamp

Need: Salt, water, a glass of vegetable oil, a few food colors, a large transparent glass or glass jar.

Experience: Fill a glass 2/3 with water, pour vegetable oil into the water. The oil will float on the surface. Add food coloring to water and oil. Then slowly add 1 teaspoon of salt.

Explanation: Oil is lighter than water, so it floats on the surface, but salt is heavier than oil, so when you add salt to a glass, the oil and salt begin to sink to the bottom. As the salt breaks down, it releases oil particles and they rise to the surface. Food coloring will help make the experience more visual and spectacular.

2. Personal rainbow

Need: A container filled with water (bath, basin), flashlight, mirror, sheet of white paper.

Experience: Pour water into the container and put a mirror on the bottom. We direct the light of a flashlight to the mirror. The reflected light must be caught on paper, on which a rainbow should appear.

Explanation: The beam of light consists of several colors; when it passes through the water, it decomposes into its component parts - in the form of a rainbow.

3. Volcano

Need: Tray, sand, plastic bottle, food coloring, soda, vinegar.

Experience: A small volcano should be molded around a small plastic bottle made of clay or sand - for entourage. To cause an eruption, you should pour two tablespoons of soda into the bottle, pour in a quarter cup of warm water, add a little food coloring, and finally pour in a quarter cup of vinegar.

Explanation: When baking soda and vinegar come into contact, a violent reaction begins with the release of water, salt and carbon dioxide. Gas bubbles and push the contents out.

4. Grow crystals

Need: Salt, water, wire.

Experience: To get crystals, you need to prepare a supersaturated salt solution - one in which when a new portion is added, the salt does not dissolve. In this case, you need to keep the solution warm. To make the process go better, it is desirable that the water be distilled. When the solution is ready, it must be poured into a new container to get rid of the debris that is always in the salt. Further, a wire with a small loop at the end can be lowered into the solution. Put the jar in a warm place so that the liquid cools more slowly. After a few days, beautiful salt crystals will grow on the wire. If you get the hang of it, you can grow fairly large crystals or patterned crafts on twisted wire.

Explanation: As the water cools, the solubility of the salt decreases, and it begins to precipitate and settle on the walls of the vessel and on your wire.

5. Dancing coin

Need: A bottle, a coin that can be used to cover the neck of a bottle, water.

Experience: An empty unclosed bottle should be put in the freezer for a few minutes. Moisten a coin with water and cover the bottle taken out of the freezer with it. After a few seconds, the coin will begin to bounce and, hitting the neck of the bottle, make sounds similar to clicks.

Explanation: The coin is lifted by air, which has compressed in the freezer and occupied a smaller volume, and now has heated up and began to expand.

6. Colored milk

Need: Whole milk, food coloring, liquid detergent, cotton buds, plate.

Experience: Pour milk into a plate, add a few drops of dyes. Then you need to take a cotton swab, dip it in detergent and touch the wand to the very center of the plate with milk. The milk will move and the colors will mix.

Explanation: Detergent reacts with fat molecules in milk and sets them in motion. That is why skimmed milk is not suitable for the experiment.

7. Fireproof bill

Need: Ten-rouble note, tongs, matches or lighter, salt, 50% alcohol solution (1/2 part alcohol to 1/2 part water).

Experience: Add a pinch of salt to the alcohol solution, immerse the bill in the solution so that it is completely saturated. Remove the bill from the solution with tongs and allow excess liquid to drain. Set fire to a bill and watch it burn without burning.

Explanation: As a result of the combustion of ethyl alcohol, water, carbon dioxide and heat (energy) are formed. When you set fire to a bill, alcohol burns. The temperature at which it burns is not enough to evaporate the water that the paper bill is soaked in. As a result, all the alcohol burns out, the flame goes out, and the slightly damp ten remains intact.

9 Camera Obscura

You will need:

A camera that supports slow shutter speeds (up to 30 s);

Large sheet of thick cardboard;

Masking tape (for pasting cardboard);

A room with a view of anything;

Sunny day.

1. We seal the window with cardboard so that the light does not come from the street.

2. In the center we make an even hole (for a room 3 meters deep, the hole should be about 7-8 mm).

3. When the eyes get used to the darkness, an inverted street will be found on the walls of the room! The most visible effect will be on a bright sunny day.

4. Now the result can be shot on a camera at a slow shutter speed. A shutter speed of 10-30 seconds is fine.

Unfortunately, most of the schoolchildren can not stand such subjects as physics and chemistry. They are not easy, especially if the teacher does not support his actions with interesting visual examples of chemical or physical reactions. Parents can help children fall in love with difficult science if they demonstrate at home from an early age, while simultaneously telling them about the amazing qualities of ordinary substances.

Chemical experiments for children at home

Even in kindergarten age, kids can be interested in such exciting activities. Do not forget that when showing entertaining experiments in chemistry for children, one should be extremely careful and observe strict safety measures. Although the substances used will not cause significant harm to the participants in the process, nevertheless, from a young age, children should be taught how to behave in such lessons. You can transfer the whole process to the street or to the kitchen, but in residential areas it is better not to experiment.

Carbon dioxide, or, as it is also called, dry ice, is used not only to cool drinks and ice cream, but also for scientific experiments with inquisitive whys. These hard crystals, which need to be properly transported and stored in special containers, can be purchased from specialized stores. The substance is often used in experiments for children at home.

Experiments with starch for children

Do not be upset if there are no dry ice cubes at hand, because you can use what is in the kitchen cabinet of every housewife. For example, fun experiments for children at home can be done using potato starch:

1. The simplest action that can be performed with starch is to color it with iodine. To do this, dilute starch in water and drop an antiseptic pipette into it. The liquid will turn blue.
2. Experiments for children at home allow not only to interest the children, but also to replenish the treasury of their knowledge. To do this, you need a potato cut in half and a cucumber. In the middle of the pieces you need to drop iodine. In this case, the potatoes will turn blue, and the cucumber will have a brown spot due to the lack of starch in it.

Is it really possible to use plain cow's milk in some other way, and not for its intended purpose? Naturally, yes, and such an experiment will be very interesting for school-age children:

Physical experiments for children at home

Not only chemistry can interest children. Boring physics can be "revived" and interesting experiments for children at home will also be beneficial. Everything that the baby knows about, but cannot see with his own eyes, can be observed in action with the help of simple and interesting tests. As with chemistry, the safety of children must be supervised by adults.

Experiments with air for children

There are various experiments with which you can understand how invisible air affects surrounding objects:

1. If you take two lemons, one of which is peeled, and put both in water, then the “naked” will immediately drown. The one that remained "dressed" will stay on the surface due to the air, which in the form of small bubbles, is contained in large quantities in the skin of the fetus.
2. Interesting experiments with air for children should be safe, like one that uses only a balloon and a bottle. A ball is put on an empty plastic container and the bottom is lowered into a well-warm one. When the air in the bottle is heated, the air will expand and inflate the ball.

Experiments with sound for children

Everyone hears the noise of the wind, but no one sees it, because the sound is invisible. But there are interesting experiences for children that will allow you to experiment with it and learn a lot of new things. You can spend them both with kids from kindergarten, as well as with schoolchildren of senior and junior classes. This does not require special equipment, because everything you need is in every home:

1. A beautiful sound can be obtained with ordinary glasses. You need to take several different shapes and sizes and fill them with water. Then, with a wet finger, you need to drive along the rim, extracting different sounds.
2. Experiments for children at home are easy. You need to take a plastic cup and cut it in half. After it is dipped in detergent. Then the ring must be brought to the music column. When the music is quiet, the film will vibrate finely, and when the bass sounds, it will inflate.

Experiments with magnets for children

Polarity is a concept completely unknown to the baby. But if you show in practice how plus and minus work, then perhaps parents will be able to interest their child so much that a famous physicist will grow out of him. Such spectacular experiences for children can be used as additional activities:

1. On the table you need to pour a handful of small nails or pins, and place a powerful magnet under the tabletop. By turning it, the carnations begin to "dance".
2. If you take two magnets and bring them closer to each other, then in the case of a different polarity, they will attract, and if they are the same, they will repel.

Experiments with electricity for children

Every parent teaches their child about the responsible use of electricity. But if this is not 220 Volts, then such experiments with static electricity for children are completely harmless and even useful for development:

1. Taking an inflated balloon, you need to rub it with a woolen mitten, giving it a positive charge. Charged in this way, it will be able to attract to itself everything that has a negative charge - hair, poppy seeds, and so on.
2. Little children will be interested to see the dancing dolls. To do this, you need to cut out small paper figures and put them on any surface. After rubbing a plastic ruler or comb on a piece of wool, you should lower it over the clippings. Magnetized, they begin to circle in a dance.

All things in the world are made of molecules (we will not talk about other smallest particles yet). There are various connections between them. If they are violated, interesting reactions can occur, sometimes very bright and spectacular. That's what we're going to talk about today. And the kid will become the star of any children's holiday if he learns to do this beautiful chemical experiment.

For an experiment for children at home, you will need: whole milk (required!), Food colors of different colors, any liquid detergent, cotton swabs, pipette, plate. And, of course, a camera to capture a colorful masterpiece.

The children have gathered, we begin the experiment:

1. Dilute dyes - red, green, blue, yellow - in small jars. Pour milk into a bowl. It should be at room temperature. So if the milk was in the refrigerator, it must be set in advance.

2. We collect each dye with a pipette, carefully drip it into the center, onto the surface of the milk. We must strive to ensure that the droplet is small, like a dot. It turns out four points.

3. Then we take a cotton swab, dip it in detergent, touch it to the center of the plate with milk and hold it there for literally 10-15 seconds. You don't need to mix. We remove the wand.

4. And then a miracle will happen! The milk itself will begin to move, and the colors will mix. A real salute or a storm of flowers in a bowl! We take photos for memory. If you wish, you can experiment further by adding more dye and drawing with sticks.

Explanation of experience for children

Milk, in addition to water, consists of molecules of various types: fats, proteins, carbohydrates, vitamins and minerals. Proteins and fat are very sensitive to changes in the solution, in this case milk. The secret of this trick lies precisely in a drop of detergent, which weakens the chemical bonds that hold fats and proteins in solution, and reduces the surface tension in milk. There is a violent chemical reaction, which we can observe thanks to food coloring. As soon as the detergent mixes evenly with milk (partially dissolves, partially attaches to fat molecules), the reaction subsides and stops.