At-home experiments are a great way to introduce children to the basics of physics and chemistry, and make complex, abstract laws and terms easier to understand through visual demonstrations. Moreover, to carry them out you do not need to acquire expensive reagents or special equipment. After all, without thinking, we carry out experiments every day at home - from adding slaked soda to dough to connecting batteries to a flashlight. Read on to learn how to conduct interesting experiments easily, simply, and safely.

Does the image of a professor with a glass flask and singed eyebrows immediately come to mind? Don't worry, our chemical experiments at home are completely safe, interesting and useful. Thanks to them, the child will easily remember what exo- and endothermic reactions are and what the difference is between them.

So let's make hatchable dinosaur eggs that can be used as bath bombs.

For the experience you need:

small dinosaur figurines;
baking soda;
vegetable oil;
citric acid;
food coloring or liquid watercolor paints.

Place ½ cup baking soda in a small bowl and add about ¼ tsp. liquid colors (or dissolve 1-2 drops of food coloring in ¼ teaspoon of water), mix the baking soda with your fingers to create an even color.
Add 1 tbsp. l. citric acid. Mix dry ingredients thoroughly.
Add 1 tsp. vegetable oil.
You should have a crumbly dough that barely sticks together when pressed. If it doesn’t want to stick together at all, then slowly add ¼ tsp. butter until you reach the desired consistency.
Now take the dinosaur figurine and mold the dough into an egg shape. It will be very fragile at first, so you should set it aside overnight (at least 10 hours) to harden.
Then you can start a fun experiment: fill the bathtub with water and throw an egg into it. It will fizz furiously as it dissolves in the water. It will be cold when touched because it is an endothermic reaction between acid and alkali, absorbing heat from the surrounding environment.

Please note that the bath may become slippery due to the addition of oil.

Experiments at home, the results of which can be felt and touched, are very popular with children. That includes this fun project that ends with lots of dense, fluffy colored foam.

To carry it out you will need:

safety glasses for children;
dry active yeast;
warm water;
hydrogen peroxide 6%;
dishwashing detergent or liquid soap (not antibacterial);
funnel;
plastic glitter (necessarily non-metallic);
food coloring;
0.5 liter bottle (it is best to take a bottle with a wide bottom for greater stability, but a regular plastic one will do).

The experiment itself is extremely simple:

1 tsp. dilute dry yeast in 2 tbsp. l. warm water.
In a bottle placed in a sink or dish with high sides, pour ½ cup of hydrogen peroxide, a drop of dye, glitter and a little dishwashing liquid (several presses on the dispenser).
Insert the funnel and pour in the yeast. The reaction will begin immediately, so act quickly.

The yeast acts as a catalyst and accelerates the release of hydrogen peroxide, and when the gas reacts with soap, it creates a huge amount of foam. This is an exothermic reaction, releasing heat, so if you touch the bottle after the “eruption” has stopped, it will be warm. Since the hydrogen immediately evaporates, you're left with just soap scum to play with.

Did you know that lemon can be used as a battery? True, very low-power. Experiments at home with citrus fruits will demonstrate to children the operation of a battery and a closed electrical circuit.

For the experiment you will need:

lemons - 4 pcs.;
galvanized nails - 4 pcs.;
small pieces of copper (you can take coins) - 4 pcs.;
alligator clips with short wires (about 20 cm) - 5 pcs.;
small light bulb or flashlight - 1 pc.

Here's how to do the experiment:

Roll on a hard surface, then squeeze the lemons lightly to release the juice inside the skins.
Insert one galvanized nail and one piece of copper into each lemon. Place them on the same line.
Connect one end of the wire to a galvanized nail and the other to a piece of copper in another lemon. Repeat this step until all the fruits are connected.
When you're done, you should be left with 1 nail and 1 piece of copper that are not connected to anything. Prepare your light bulb, determine the polarity of the battery.
Connect the remaining piece of copper (plus) and the nail (minus) to the plus and minus of the flashlight. Thus, a chain of connected lemons is a battery.
Turn on a light bulb that will run on fruit energy!

To repeat such experiments at home, potatoes, especially green ones, are also suitable.

How does this work? The citric acid found in lemon reacts with two different metals, which causes the ions to move in one direction, creating an electrical current. All chemical sources of electricity operate on this principle.

You don't have to stay indoors to conduct experiments for children at home. Some experiments will work better outdoors, and you won't have to clean anything up after they're done. These include interesting experiments at home with air bubbles, not simple ones, but huge ones.

To make them you will need:

2 wooden sticks 50-100 cm long (depending on the age and height of the child);
2 metal screw-in ears;
1 metal washer;
3 m of cotton cord;
bucket of water;
any detergent - for dishes, shampoo, liquid soap.

Here's how to conduct spectacular experiments for children at home:

Screw metal tabs into the ends of the sticks.
Cut the cotton cord into two parts, 1 and 2 m long. You may not strictly adhere to these measurements, but it is important that the proportion between them is maintained at 1 to 2.
Place a washer on a long piece of rope so that it hangs evenly in the center, and tie both ropes to the eyes on the sticks, forming a loop.
Mix a small amount of detergent in a bucket of water.
Gently dip the loop of the sticks into the liquid and begin blowing giant bubbles. To separate them from each other, carefully bring the ends of the two sticks together.

What is the scientific component of this experiment? Explain to children that bubbles are held together by surface tension, the attractive force that holds the molecules of any liquid together. Its effect is manifested in the fact that spilled water collects into drops, which tend to take on a spherical shape, as the most compact of all existing in nature, or in the fact that water, when poured, collects into cylindrical streams. The bubble has a layer of liquid molecules on both sides sandwiched by soap molecules, which increase its surface tension when distributed over the surface of the bubble and prevent it from quickly evaporating. While the sticks are kept open, the water is held in the form of a cylinder; as soon as they are closed, it tends to a spherical shape.

These are the kinds of experiments you can do at home with children.

7 simple experiments to show your children

There are very simple experiments that children remember for the rest of their lives. The children may not fully understand why this is all happening, but when time passes and they find themselves in a physics or chemistry lesson, a very clear example will certainly emerge in their memory.

Bright Side I collected 7 interesting experiments that children will remember. Everything you need for these experiments is at your fingertips.

Will need: 2 balls, candle, matches, water.

Experience: Inflate a balloon and hold it over a lit candle to demonstrate to children that the fire will make the balloon burst. Then pour plain tap water into the second ball, tie it and bring it to the candle again. It turns out that with water the ball can easily withstand the flame of a candle.

Explanation: The water in the ball absorbs the heat generated by the candle. Therefore, the ball itself will not burn and, therefore, will not burst.

You will need: plastic bag, pencils, water.

Experience: Fill the plastic bag halfway with water. Use a pencil to pierce the bag right through where it is filled with water.

Explanation: If you pierce a plastic bag and then pour water into it, it will pour out through the holes. But if you first fill the bag halfway with water and then pierce it with a sharp object so that the object remains stuck into the bag, then almost no water will flow out through these holes. This is due to the fact that when polyethylene breaks, its molecules are attracted closer to each other. In our case, the polyethylene is tightened around the pencils.

You will need: a balloon, a wooden skewer and some dishwashing liquid.

Experience: Coat the top and bottom with the product and pierce the ball, starting from the bottom.

Explanation: The secret of this trick is simple. In order to preserve the ball, you need to pierce it at the points of least tension, and they are located at the bottom and at the top of the ball.

Will need: 4 cups of water, food coloring, cabbage leaves or white flowers.

Experience: Add any color of food coloring to each glass and place one leaf or flower in the water. Leave them overnight. In the morning you will see that they have turned different colors.

Explanation: Plants absorb water and thereby nourish their flowers and leaves. This happens due to the capillary effect, in which water itself tends to fill the thin tubes inside the plants. This is how flowers, grass, and large trees feed. By sucking in tinted water, they change color.

Will need: 2 eggs, 2 glasses of water, salt.

Experience: Carefully place the egg in a glass of plain, clean water. As expected, it will sink to the bottom (if not, the egg may be rotten and should not be returned to the refrigerator). Pour warm water into the second glass and stir 4-5 tablespoons of salt in it. For the purity of the experiment, you can wait until the water cools down. Then place the second egg in the water. It will float near the surface.

Explanation: It's all about density. The average density of an egg is much greater than that of plain water, so the egg sinks down. And the density of the salt solution is higher, and therefore the egg rises up.

Will need: 2 cups of water, 5 cups of sugar, wooden sticks for mini kebabs, thick paper, transparent glasses, saucepan, food coloring.

Experience: In a quarter glass of water, boil sugar syrup with a couple of tablespoons of sugar. Sprinkle some sugar onto the paper. Then you need to dip the stick in the syrup and collect the sugar with it. Next, distribute them evenly on the stick.

Leave the sticks to dry overnight. In the morning, dissolve 5 cups of sugar in 2 glasses of water over heat. You can leave the syrup to cool for 15 minutes, but it should not cool too much, otherwise the crystals will not grow. Then pour it into jars and add different food colorings. Place the prepared sticks in a jar of syrup so that they do not touch the walls and bottom of the jar; a clothespin will help with this.

Explanation: As the water cools, the solubility of sugar decreases, and it begins to precipitate and settle on the walls of the vessel and on your stick seeded with sugar grains.

Experience: Light a match and hold it at a distance of 10-15 centimeters from the wall. Shine a flashlight on the match and you will see that only your hand and the match itself are reflected on the wall. It would seem obvious, but I never thought about it.

Explanation: Fire does not cast shadows because it does not prevent light from passing through it.

Simple experiments

Do you love physics? Do you like to experiment? The world of physics is waiting for you!

What could be more interesting than experiments in physics? And, of course, the simpler the better!

These fascinating experiments will help you see the extraordinary phenomena of light and sound, electricity and magnetism. Everything needed for the experiments is easy to find at home, and the experiments themselves are simple and safe.

Your eyes are burning, your hands are itching!

— Robert Wood is a genius of experimentation. look

— Up or down? Rotating chain. Salt fingers. look

— IO-IO toy. Salt pendulum. Paper dancers. Electric dance. look

— The Mystery of Ice Cream. Which water will freeze faster? It's frosty, but the ice is melting! . look

— The snow creaks. What will happen to the icicles? Snow flowers. look

- Who is faster? Jet balloon. Air carousel. look

- Multi-colored balls. Sea resident. Balancing egg. look

— Electric motor in 10 seconds. Gramophone. look

- Boil, cool. look

— Faraday's experiment. Segner wheel. Nutcracker. look

Experiments with weightlessness. Weightless water. How to reduce your weight. look

— Jumping grasshopper. Jumping ring. Elastic coins. look

— A drowned thimble. Obedient ball. We measure friction. Funny monkey. Vortex rings. look

- Rolling and sliding. Rest friction. The acrobat is doing a cartwheel. Brake in the egg. look

- Take out the coin. Experiments with bricks. Wardrobe experience. Experience with matches. Inertia of the coin. Hammer experience. Circus experience with a jar. Ball experiment. look

— Experiments with checkers. Domino experience. Experiment with an egg. Ball in a glass. Mysterious skating rink. look

— Experiments with coins. Water hammer. Outsmart inertia. look

— Experience with boxes. Experience with checkers. Coin experience. Catapult. Inertia of an apple. look

— Experiments with rotational inertia. Ball experiment. look

— Newton's first law. Newton's third law. Action and reaction. Law of conservation of momentum. Quantity of movement. look

— Jet shower. Experiments with jet spinners: air spinner, jet balloon, ether spinner, Segner wheel. look

- Balloon rocket. Multistage rocket. Pulse ship. Jet boat. look

— Centrifugal force. Easier on turns. Ring experience. look

— Gyroscopic toys. Clark's top. Greig's top. Lopatin's flying top. Gyroscopic machine. look

— Gyroscopes and tops. Experiments with a gyroscope. Experience with a top. Wheel experience. Coin experience. Riding a bike without hands. Boomerang experience. look

— Experiments with invisible axes. Experience with paper clips. Rotating a matchbox. Slalom on paper. look

- Rotation changes shape. Cool or damp. Dancing egg. How to put a match. look

— When the water does not pour out. A bit of a circus. Experiment with a coin and a ball. When the water pours out. Umbrella and separator. look

- Vanka-stand up. Mysterious nesting doll. look

— Center of gravity. Equilibrium. Center of gravity height and mechanical stability. Base area and balance. Obedient and naughty egg. look

— Human center of gravity. Balance of forks. Fun swing. A diligent sawyer. Sparrow on a branch. look

— Center of gravity. Pencil competition. Experience with unstable balance. Human balance. Stable pencil. Knife at the top. Experience with a ladle. Experiment with a saucepan lid. look

— Plasticity of ice. A nut that has come out. Properties of non-Newtonian fluid. Growing crystals. Properties of water and eggshells. look

— Expansion of a solid. Lapped plugs. Needle extension. Thermal scales. Separating glasses. Rusty screw. The board is in pieces. Ball expansion. Coin expansion. look

— Expansion of gas and liquid. Heating the air. Sounding coin. Water pipe and mushrooms. Heating water. Warming up the snow. Dry from the water. The glass is creeping. look

— Plateau experience. Darling's experience. Wetting and non-wetting. Floating razor. look

— The attraction of traffic jams. Sticking to water. A miniature Plateau experience. Soap bubbles. look

- Live fish. Paperclip experience. Experiments with detergents. Colored streams. Rotating spiral. look

— Experience with a blotter. Experiment with pipettes. Experience with matches. Capillary pump. look

— Hydrogen soap bubbles. Scientific preparation. Bubble in a jar. Colored rings. Two in one. look

- Transformation of energy. Bent strip and ball. Tongs and sugar. Photoexposure meter and photoelectric effect. look

— Conversion of mechanical energy into thermal energy. Propeller experience. A hero in a thimble. look

— Experiment with an iron nail. Experience with wood. Experience with glass. Experiment with spoons. Coin experience. Thermal conductivity of porous bodies. Thermal conductivity of gas. look

-Which is colder. Heating without fire. Absorption of heat. Radiation of heat. Evaporative cooling. Experiment with an extinguished candle. Experiments with the outer part of the flame. look

— Transfer of energy by radiation. Experiments with solar energy. look

— Weight is a heat regulator. Experience with stearin. Creating traction. Experience with scales. Experience with a turntable. Pinwheel on a pin. look

— Experiments with soap bubbles in the cold. Crystallization watch

— Frost on the thermometer. Evaporation from the iron. We regulate the boiling process. Instant crystallization. growing crystals. Making ice. Cutting ice. Rain in the kitchen. look

—Water freezes water. Ice castings. We create a cloud. Let's make a cloud. We boil the snow. Ice bait. How to get hot ice. look

— Growing crystals. Salt crystals. Golden crystals. Large and small. Peligo's experience. Experience-focus. Metal crystals. look

— Growing crystals. Copper crystals. Fairytale beads. Halite patterns. Homemade frost. look

- Paper pan. Dry ice experiment. Experience with socks. look

— Experience on the Boyle-Mariotte law. Experiment on Charles's law. Let's check the Clayperon equation. Let's check Gay-Lusac's law. Ball trick. Once again about the Boyle-Mariotte law. look

— Steam engine. The experience of Claude and Bouchereau. look

— Water turbine. Steam turbine. Wind engine. Water wheel. Hydro turbine. Windmill toys. look

— Pressure of a solid body. Punching a coin with a needle. Cutting through ice. look

- Fountains. The simplest fountain. Three fountains. Fountain in a bottle. Fountain on the table. look

— Atmospheric pressure. Bottle experience. Egg in a decanter. Can sticking. Experience with glasses. Experience with a can. Experiments with a plunger. Flattening the can. Experiment with test tubes. look

— Vacuum pump made from blotting paper. Air pressure. Instead of the Magdeburg hemispheres. A diving bell glass. Carthusian diver. Punished curiosity. look

— Experiments with coins. Experiment with an egg. Experience with a newspaper. School gum suction cup. How to empty a glass. look

— Experiments with glasses. The mysterious property of radishes. Bottle experience. look

- Naughty plug. What is pneumatics? Experiment with a heated glass. How to lift a glass with your palm. look

- Cold boiling water. How much does water weigh in a glass? Determine lung volume. Resistant funnel. How to pierce a balloon without it bursting. look

- Hygrometer. Hygroscope. Barometer made from a pine cone. look

- Three balls. The simplest submarine. Grape experiment. Does iron float? look

- Ship's draft. Does the egg float? Cork in a bottle. Water candlestick. Sinks or floats. Especially for drowning people. Experience with matches. Amazing egg. Does the plate sink? The mystery of the scales. look

— Float in a bottle. Obedient fish. Pipette in a bottle - Cartesian diver. look

— Ocean level. Boat on the ground. Will the fish drown? Stick scales. look

- Archimedes' Law. Live toy fish. Bottle level. look

— Experience with a funnel. Experiment with water jet. Ball experiment. Experience with scales. Rolling cylinders. stubborn leaves. look

- Bendable sheet. Why doesn't he fall? Why does the candle go out? Why doesn't the candle go out? The air flow is to blame. look

— Lever of the second type. Pulley hoist. look

- Lever. Gate. Lever scales. look

— Pendulum and bicycle. Pendulum and globe. A fun duel. Unusual pendulum. look

— Torsion pendulum. Experiments with a swinging top. Rotating pendulum. look

— Experiment with the Foucault pendulum. Addition of vibrations. Experiment with Lissajous figures. Resonance of pendulums. Hippopotamus and bird. look

- Fun swing. Oscillations and resonance. look

- Fluctuations. Forced vibrations. Resonance. Seize the moment. look

— Physics of musical instruments. String. Magic bow. Ratchet. Singing glasses. Bottlephone. From bottle to organ. look

— Doppler effect. Sound lens. Chladni's experiments. look

— Sound waves. Propagation of sound. look

- Sounding glass. Flute made from straw. The sound of a string. Reflection of sound. look

- Telephone made from a matchbox. Telephone exchange. look

- Singing combs. Spoon ringing. Singing glass. look

- Singing water. Shy wire. look

- Hear the heartbeat. Glasses for ears. Shock wave or firecracker. look

- Sing with me. Resonance. Sound through bone. look

- Tuning fork. A storm in a teacup. Louder sound. look

- My strings. Changing the pitch of the sound. Ting-ding. Crystal clear. look

— We make the ball squeak. Kazoo. Singing bottles. Choral singing. look

— Intercom. Gong. Crowing glass. look

- Let's blow out the sound. String instrument. Small hole. Blues on bagpipes. look

- Sounds of nature. Singing straw. Maestro, march. look

- A speck of sound. What's in the bag? Sound on the surface. Day of disobedience. look

— Sound waves. Visual sound. Sound helps you see. look

- Electrification. Electric panty. Electricity is repellent. Dance of soap bubbles. Electricity on combs. The needle is a lightning rod. Electrification of the thread. look

- Bouncing balls. Interaction of charges. Sticky ball. look

— Experience with a neon light bulb. Flying bird. Flying butterfly. An animated world. look

— Electric spoon. St. Elmo's Fire. Electrification of water. Flying cotton wool. Electrification of a soap bubble. Loaded frying pan. look

- Electrification of the flower. Experiments on human electrification. Lightning on the table. look

- Electroscope. Electric Theater. Electric cat. Electricity attracts. look

- Electroscope. Soap bubbles. Fruit battery. Fighting gravity. Battery of galvanic cells. Connect the coils. look

- Turn the arrow. Balancing on the edge. Pushing nuts. Turn on the light. look

— Amazing tapes. Radio signal. Static separator. Jumping grains. Static rain. look

— Film wrapper. Magic figurines. Influence of air humidity. An animated door handle. Sparkling clothes. look

- Charging from a distance. Rolling ring. Crackling and clicking sounds. Wand. look

- Everything can be charged. Positive charge. Attraction of bodies. Static glue. Charged plastic. Ghost leg. look

Electrification. Experiments with tape. We call lightning. St. Elmo's Fire. Heat and current. Draws electric current. look

— A vacuum cleaner made from combs. Dancing cereal. Electric wind. Electric octopus. look

— Current sources. First battery. Thermocouple. Chemical current source. look

- We're making a battery. Grenet's element. Dry current source. From an old battery. Improved element. The last squeak. look

— Trick experiments with a Thomson coil. look

— How to make a magnet. Experiments with needles. Experiment with iron filings. Magnetic paintings. Cutting magnetic lines of force. Disappearance of magnetism. Sticky top. Iron top. Magnetic pendulum. look

— Magnetic brigantine. Magnetic fisherman. Magnetic infection. Picky goose. Magnetic shooting range. Woodpecker. look

— Magnetic compass. magnetization of the poker. Magnetizing a feather with a poker. look

— Magnets. Curie point. Iron top. Steel barrier. Perpetual motion machine made of two magnets. look

- Make a magnet. Demagnetize the magnet. Where the compass needle points. Magnet extension. Get rid of danger. look

- Interaction. In a world of opposites. The poles are against the middle of the magnet. Chain game. Anti-gravity discs. look

— See the magnetic field. Draw a magnetic field. Magnetic metals. Shake 'em up Barrier to magnetic field. Flying cup. look

- Light beam. How to see the light. Rotation of the light beam. Multi-colored lights. Sugar light. look

- Absolutely black body. look

— Slide projector. Shadow physics. look

- Magic ball. Camera obscura. Upside down. look

— How the lens works. Water magnifier. Turn on the heating. look

— The mystery of dark stripes. More light. Color on glass. look

— Copier. Mirror magic. Appearing out of nowhere. Coin trick experiment. look

— Reflection in a spoon. Crooked mirror made from wrapping paper. Transparent mirror. look

- What angle? Remote control. Mirror room. look

- Just for fun. Reflected rays. Jumps of light. Mirror letter. look

- Scratch the mirror. How others see you. Mirror to mirror. look

- Adding up the colors. Rotating white. Colored spinning top. look

— Spread of light. Obtaining the spectrum. Spectrum on the ceiling. look

— Arithmetic of colored rays. Disc trick. Banham's disk. look

— Mixing colors using tops. Experience with the stars. look

- Mirror. Reversed name. Multiple reflection. Mirror and TV. look

— Weightlessness in the mirror. Let's multiply. Direct mirror. Crooked mirror. look

- Lenses. Cylindrical lens. Double-decker lens. Diffusing lens. Homemade spherical lens. When the lens stops working. look

- Droplet lens. Fire from an ice floe. Does a magnifying glass magnify? The image can be captured. In the footsteps of Leeuwenhoek. look

— Focal length of the lens. Mysterious test tube. Wayward arrow. look

— Experiments on light scattering. look

— Disappearing coin. Broken pencil. Living shadow. Experiments with light. look

- Shadow of the flame. Law of light reflection. Mirror reflection. Reflection of parallel rays. Experiments on total internal reflection. Path of light rays in a light guide. Experiment with a spoon. Refraction of light. Refraction in a lens. look

— Interference. The crevice experiment. Experience with thin film. Diaphragm or needle transformation. look

— Interference on a soap bubble. Interference in the varnish film. Making rainbow paper. look

— Obtaining a spectrum using an aquarium. Spectrum using a water prism. Anomalous dispersion. look

— Experience with a pin. Experience with paper. Experiment on slit diffraction. Laser diffraction experiment. look

Pour water into the glass, making sure to reach the very edge. Cover with a sheet of thick paper and, holding it gently, very quickly turn the glass upside down. Just in case, do all this over the basin or in the bathtub. Now remove your palm... Focus! still remains in the glass!

It's a matter of atmospheric air pressure. The air pressure on the paper from the outside is greater than the pressure on it from the inside of the glass and, accordingly, does not allow the paper to release water from the container.

Rene Descartes' experiment or pipette diver

This entertaining experience is about three hundred years old. It is attributed to the French scientist René Descartes.

You will need a plastic bottle with a stopper, a dropper and water. Fill the bottle, leaving two to three millimeters to the edge of the neck. Take a pipette, fill it with some water and drop it into the neck of the bottle. Its upper rubber end should be at or slightly above the level in the bottle. In this case, you need to ensure that with a slight push with your finger the pipette sinks, and then slowly floats up on its own. Now close the cap and squeeze the sides of the bottle. The pipette will go to the bottom of the bottle. Release the pressure on the bottle and it will float again.

The fact is that we slightly compressed the air in the neck of the bottle and this pressure was transferred to the water. penetrated the pipette - it became heavier (since water is heavier than air) and drowned. When the pressure stopped, the compressed air inside the pipette removed the excess, our “diver” became lighter and surfaced. If at the beginning of the experiment the “diver” does not listen to you, then you need to adjust the amount of water in the pipette. When the pipette is at the bottom of the bottle, it is easy to see how, as the pressure on the walls of the bottle increases, it enters the pipette, and when the pressure is loosened, it comes out of it.

Do you love physics? you love experiment? The world of physics is waiting for you!
What could be more interesting than experiments in physics? And, of course, the simpler the better!
These exciting experiments will help you see extraordinary phenomena light and sound, electricity and magnetism Everything necessary for the experiments is easy to find at home, and the experiments themselves simple and safe.
Your eyes are burning, your hands are itching!
Go ahead, explorers!

Robert Wood - a genius of experimentation.........
- Up or down? Rotating chain. Fingers of salt......... - Moon and diffraction. What color is the fog? Newton's rings......... - A top in front of the TV. Magic propeller. Ping-pong in the bath......... - Spherical aquarium - lens. Artificial mirage. Soap glasses......... - Eternal salt fountain. Fountain in a test tube. Rotating spiral......... - Condensation in a jar. Where is the water vapor? Water engine........ - Popping egg. An overturned glass. Swirl in a cup. Heavy newspaper.........
- IO-IO toy. Salt pendulum. Paper dancers. Electric dance.........
- The mystery of ice cream. Which water will freeze faster? It's frosty, but the ice is melting! .......... - Let's make a rainbow. A mirror that doesn't confuse. Microscope made from a drop of water.........
- The snow creaks. What will happen to the icicles? Snow flowers......... - Interaction of sinking objects. Ball is touchable.........
- Who is faster? Jet balloon. Air carousel......... - Bubbles from a funnel. Green hedgehog. Without opening the bottles......... - Spark plug motor. Bump or hole? A moving rocket. Divergent rings.........
- Multi-colored balls. Sea resident. Balancing egg.........
- Electric motor in 10 seconds. Gramophone..........
- Boil, cool......... - Waltzing dolls. Flame on paper. Robinson's feather.........
- Faraday experiment. Segner wheel. Nutcrackers......... - Dancer in the mirror. Silver plated egg. Trick with matches......... - Oersted's experience. Roller coaster. Don't drop it! ..........

Body weight. Weightlessness.
Experiments with weightlessness. Weightless water. How to reduce your weight.........

Elastic force
- Jumping grasshopper. Jumping ring. Elastic coins..........
Friction
- Reel-crawler..........
- Drowned thimble. Obedient ball. We measure friction. Funny monkey. Vortex rings.........
- Rolling and sliding. Rest friction. The acrobat is doing a cartwheel. Brake in the egg.........
Inertia and inertia
- Take out the coin. Experiments with bricks. Wardrobe experience. Experience with matches. Inertia of the coin. Hammer experience. Circus experience with a jar. Experiment with a ball.........
- Experiments with checkers. Domino experience. Experiment with an egg. Ball in a glass. Mysterious skating rink.........
- Experiments with coins. Water hammer. Outsmarting inertia.........
- Experience with boxes. Experience with checkers. Coin experience. Catapult. Inertia of an apple.........
- Experiments with rotational inertia. Experiment with a ball.........

Mechanics. Laws of mechanics
- Newton's first law. Newton's third law. Action and reaction. Law of conservation of momentum. Quantity of movement.........

Jet propulsion
- Jet shower. Experiments with jet spinners: air spinner, jet balloon, ether spinner, Segner wheel.........
- Balloon rocket. Multistage rocket. Pulse ship. Jet boat.........

Free fall
-Which is faster.........

Circular movement
- Centrifugal force. Easier on turns. Experience with the ring.........

Rotation
- Gyroscopic toys. Clark's top. Greig's top. Lopatin's flying top. Gyroscopic machine.........
- Gyroscopes and tops. Experiments with a gyroscope. Experience with a top. Wheel experience. Coin experience. Riding a bike without hands. Boomerang experience.........
- Experiments with invisible axes. Experience with paper clips. Rotating a matchbox. Slalom on paper.........
- Rotation changes shape. Cool or damp. Dancing egg. How to put a match.........
- When the water does not pour out. A bit of a circus. Experiment with a coin and a ball. When the water pours out. Umbrella and separator..........

Statics. Equilibrium. Center of gravity
- Vanka-stand up. Mysterious nesting doll.........
- Center of gravity. Equilibrium. Center of gravity height and mechanical stability. Base area and balance. Obedient and naughty egg..........
- Center of gravity of a person. Balance of forks. Fun swing. A diligent sawyer. Sparrow on a branch.........
- Center of gravity. Pencil competition. Experience with unstable balance. Human balance. Stable pencil. Knife at the top. Experience with a ladle. Experience with a saucepan lid.........

Structure of matter
- Fluid model. What gases does air consist of? Highest density of water. Density tower. Four floors.........
- Plasticity of ice. A nut that has come out. Properties of non-Newtonian fluid. Growing crystals. Properties of water and eggshells..........

Thermal expansion
- Expansion of a solid. Lapped plugs. Needle extension. Thermal scales. Separating glasses. Rusty screw. The board is in pieces. Ball expansion. Coin expansion.........
- Expansion of gas and liquid. Heating the air. Sounding coin. Water pipe and mushrooms. Heating water. Warming up the snow. Dry from the water. The glass is creeping.........

Surface tension of a liquid. Wetting
- Plateau experience. Darling's experience. Wetting and non-wetting. Floating razor.........
- Attraction of traffic jams. Sticking to water. A miniature Plateau experience. Soap bubbles.........
- Live fish. Paperclip experience. Experiments with detergents. Colored streams. Rotating spiral.........

Capillary phenomena
- Experience with a blotter. Experiment with pipettes. Experience with matches. Capillary pump.........

Soap bubbles
- Hydrogen soap bubbles. Scientific preparation. Bubble in a jar. Colored rings. Two in one.........

Energy
- Transformation of energy. Bent strip and ball. Tongs and sugar. Photo exposure meter and photo effect.........
- Conversion of mechanical energy into thermal energy. Propeller experience. Bogatyr in a thimble..........

Thermal conductivity
- Experiment with an iron nail. Experience with wood. Experience with glass. Experiment with spoons. Coin experience. Thermal conductivity of porous bodies. Thermal conductivity of gas.........

Heat
-Which is colder. Heating without fire. Absorption of heat. Radiation of heat. Evaporative cooling. Experiment with an extinguished candle. Experiments with the outer part of the flame..........

Radiation. Energy transfer
- Transfer of energy by radiation. Experiments with solar energy.........

Convection
- Weight is a heat regulator. Experience with stearin. Creating traction. Experience with scales. Experience with a turntable. Pinwheel on a pin..........

Aggregate states.
- Experiments with soap bubbles in the cold. Crystallization
- Frost on the thermometer. Evaporation from the iron. We regulate the boiling process. Instant crystallization. growing crystals. Making ice. Cutting ice. Rain in the kitchen.........
- Water freezes water. Ice castings. We create a cloud. Let's make a cloud. We boil the snow. Ice bait. How to get hot ice.........
- Growing crystals. Salt crystals. Golden crystals. Large and small. Peligo's experience. Experience-focus. Metal crystals.........
- Growing crystals. Copper crystals. Fairytale beads. Halite patterns. Homemade frost.........
- Paper pan. Dry ice experiment. Experience with socks.........

Gas laws
- Experience on the Boyle-Mariotte law. Experiment on Charles's law. Let's check the Clayperon equation. Let's check Gay-Lusac's law. Ball trick. Once again about the Boyle-Mariotte law..........

Engines
- Steam engine. The experience of Claude and Bouchereau.........
- Water turbine. Steam turbine. Wind engine. Water wheel. Hydro turbine. Windmill toys.........

Pressure
- Pressure of a solid body. Punching a coin with a needle. Cutting through ice.........
- Siphon - Tantalus vase..........
- Fountains. The simplest fountain. Three fountains. Fountain in a bottle. Fountain on the table.........
- Atmospheric pressure. Bottle experience. Egg in a decanter. Can sticking. Experience with glasses. Experience with a can. Experiments with a plunger. Flattening the can. Experiment with test tubes.........
- Vacuum pump made from blotting paper. Air pressure. Instead of the Magdeburg hemispheres. A diving bell glass. Carthusian diver. Punished curiosity.........
- Experiments with coins. Experiment with an egg. Experience with a newspaper. School gum suction cup. How to empty a glass.........
- Pumps. Spray..........
- Experiments with glasses. The mysterious property of radishes. Bottle experience.........
- Naughty plug. What is pneumatics? Experiment with a heated glass. How to lift a glass with your palm.........
- Cold boiling water. How much does water weigh in a glass? Determine lung volume. Resistant funnel. How to pierce a balloon without it bursting..........
- Hygrometer. Hygroscope. Barometer from a cone......... - Barometer. Aneroid barometer - do it yourself. Balloon barometer. The simplest barometer......... - Barometer from a light bulb.......... - Air barometer. Water barometer. Hygrometer..........

Communicating vessels
- Experience with the painting.........

Archimedes' law. Buoyancy force. Floating bodies
- Three balls. The simplest submarine. Grape experiment. Does iron float.........
- Ship's draft. Does the egg float? Cork in a bottle. Water candlestick. Sinks or floats. Especially for drowning people. Experience with matches. Amazing egg. Does the plate sink? The mystery of the scales.........
- Float in a bottle. Obedient fish. Pipette in a bottle - Cartesian diver..........
- Ocean level. Boat on the ground. Will the fish drown? Stick scales.........
- Archimedes' Law. Live toy fish. Bottle level.........

Bernoulli's law
- Experience with a funnel. Experiment with water jet. Ball experiment. Experience with scales. Rolling cylinders. stubborn leaves.........
- Bendable sheet. Why doesn't he fall? Why does the candle go out? Why doesn't the candle go out? The air flow is to blame.........

Simple mechanisms
- Block. Pulley hoist.........
- Lever of the second type. Pulley hoist.........
- Lever. Gate. Lever scales.........

Oscillations
- Pendulum and bicycle. Pendulum and globe. A fun duel. Unusual pendulum..........
- Torsion pendulum. Experiments with a swinging top. Rotating pendulum.........
- Experiment with the Foucault pendulum. Addition of vibrations. Experiment with Lissajous figures. Resonance of pendulums. Hippopotamus and bird.........
- Fun swing. Oscillations and resonance.........
- Fluctuations. Forced vibrations. Resonance. Seize the moment.........

Sound
- Gramophone - do it yourself..........
- Physics of musical instruments. String. Magic bow. Ratchet. Singing glasses. Bottlephone. From bottle to organ.........
- Doppler effect. Sound lens. Chladni's experiments.........
- Sound waves. Propagation of sound.........
- Sounding glass. Flute made from straw. The sound of a string. Sound reflection.........
- Phone made from a matchbox. Telephone exchange.........
- Singing combs. Spoon ringing. Singing glass.........
- Singing water. Shy wire.........
- Sound oscilloscope..........
- Ancient sound recording. Cosmic voices.........
- Hear the heartbeat. Glasses for ears. Shock wave or firecracker..........
- Sing with me. Resonance. Sound through the bone.........
- Tuning fork. A storm in a teacup. Louder sound.........
- My strings. Changing the pitch of the sound. Ting-ding. Crystal clear.........
- We make the ball squeak. Kazoo. Singing bottles. Choral singing.........
- Intercom. Gong. Crowing glass.........
- Let's blow out the sound. String instrument. Small hole. Blues on bagpipes..........
- Sounds of nature. Singing straw. Maestro, march.........
- A speck of sound. What's in the bag? Sound on the surface. Day of disobedience.........
- Sound waves. Visual sound. Sound helps you see.........

Electrostatics
- Electrification. Electric panty. Electricity is repellent. Dance of soap bubbles. Electricity on combs. The needle is a lightning rod. Electrification of the thread.........
- Bouncing balls. Interaction of charges. Sticky ball.........
- Experience with a neon light bulb. Flying bird. Flying butterfly. An animated world.........
- Electric spoon. St. Elmo's Fire. Electrification of water. Flying cotton wool. Electrification of a soap bubble. Loaded frying pan.........
- Electrification of the flower. Experiments on human electrification. Lightning on the table.........
- Electroscope. Electric Theater. Electric cat. Electricity attracts.........
- Electroscope. Soap bubbles. Fruit battery. Fighting gravity. Battery of galvanic cells. Connect the coils.........
- Turn the arrow. Balancing on the edge. Pushing nuts. Turn on the light.........
- Amazing tapes. Radio signal. Static separator. Jumping grains. Static rain.........
- Film wrapper. Magic figurines. Influence of air humidity. An animated door handle. Sparkling clothes.........
- Charging from a distance. Rolling ring. Crackling and clicking sounds. Wand..........
- Everything can be charged. Positive charge. Attraction of bodies. Static glue. Charged plastic. Ghost leg.........

Good afternoon, guests of the Eureka Research Institute website! Do you agree that knowledge supported by practice is much more effective than theory? Entertaining experiments in physics will not only provide great entertainment, but will also arouse a child’s interest in science, and will also remain in memory much longer than a paragraph in a textbook.

What can experiments teach children?

We bring to your attention 7 experiments with explanations that will definitely raise the question in your child “Why?” As a result, the child learns that:

By mixing 3 primary colors: red, yellow and blue, you can get additional ones: green, orange and purple. Have you thought about paints? We offer you another, unusual way to verify this.
Light reflects off a white surface and turns into heat if it hits a black object. What could this lead to? Let's figure it out.
All objects are subject to gravity, that is, they tend to a state of rest. In practice it looks fantastic.
Objects have a center of mass. And what? Let's learn to benefit from this.
Magnet is an invisible but powerful force of some metals that can give you the abilities of a magician.
Static electricity can not only attract your hair, but also sort out small particles.

So let's make our children proficient!

1. Create a new color

This experiment will be useful for preschoolers and primary schoolchildren. To conduct the experiment we will need:

flashlight;
red, blue and yellow cellophane;
ribbon;
white wall.

We conduct the experiment near a white wall:

We take a lantern, cover it first with red and then yellow cellophane, and then turn on the light. We look at the wall and see an orange reflection.
Now we remove the yellow cellophane and put a blue bag on top of the red one. Our wall is illuminated in purple.
And if we cover the lantern with blue and then yellow cellophane, then we will see a green spot on the wall.
This experiment can be continued with other colors.

2. Black and sunbeam: an explosive combination

To carry out the experiment you will need:

1 transparent and 1 black balloon;
magnifying glass;
ray of sunshine.

This experience will require skill, but you can do it.

First you need to inflate a transparent balloon. Hold it tightly, but do not tie the end.
Now, using the blunt end of a pencil, push the black balloon halfway inside the transparent one.
Inflate the black balloon inside the clear one until it fills about half the volume.
Tie the end of the black ball and push it into the middle of the clear ball.
Inflate the transparent balloon a little more and tie the end.
Position the magnifying glass so that the sun's ray hits the black ball.
After a few minutes, the black ball will burst inside the transparent one.

Tell your child that transparent materials allow sunlight to pass through, so we can see the street through the window. A black surface, on the contrary, absorbs light rays and turns them into heat. This is why it is recommended to wear light-colored clothing in hot weather to avoid overheating. When the black ball heated up, it began to lose its elasticity and burst under the pressure of the internal air.

3. Lazy ball

The next experiment is a real show, but you will need to practice to carry it out. The school provides an explanation for this phenomenon in the 7th grade, but in practice this can be done even in preschool age. Prepare the following items:

plastic glass;
metal dish;
cardboard toilet paper tube;
tennis ball;
meter;
broom.

How to conduct this experiment?

So, place the glass on the edge of the table.
Place a dish on the glass so that its edge on one side is above the floor.
Place the base of the toilet paper roll in the center of the dish directly above the glass.
Place the ball on top.
Stand half a meter from the structure with a broom in your hand so that its rods are bent towards your feet. Stand on top of them.
Now pull back the broom and release it sharply.
The handle will hit the dish, and it, together with the cardboard sleeve, will fly to the side, and the ball will fall into the glass.

Why didn't it fly away with the rest of the items?

Because, according to the law of inertia, an object that is not acted upon by other forces tends to remain at rest. In our case, the ball was only affected by the force of gravity towards the Earth, so it fell down.

4. Raw or cooked?

Let's introduce the child to the center of mass. To do this, let's take:

· cooled hard-boiled egg;

· 2 raw eggs;

Invite a group of children to distinguish a boiled egg from a raw one. However, eggs cannot be broken. Say that you can do it without fail.

Roll both eggs on the table.
An egg that rotates faster and at a uniform speed is a boiled one.
To prove your point, crack another egg into a bowl.
Take a second raw egg and a paper napkin.
Ask a member of the audience to make the egg stand on the blunt end. No one can do this except you, since only you know the secret.
Just vigorously shake the egg up and down for half a minute, then easily place it on a napkin.

Why do eggs behave differently?

They, like any other object, have a center of mass. That is, different parts of an object may not weigh the same, but there is a point that divides its mass into equal parts. In a boiled egg, due to its more uniform density, the center of mass remains in the same place during rotation, but in a raw egg it moves along with the yolk, which makes its movement difficult. In a raw egg that has been shaken, the yolk sinks to the blunt end and the center of mass is there, so it can be placed.

5. “Golden” mean

Invite the children to find the middle of the stick without a ruler, but just by eye. Evaluate the result using a ruler and say that it is not entirely correct. Now do it yourself. A mop handle is best.

Raise the stick to waist level.
Place it on 2 index fingers, keeping them at a distance of 60 cm.
Move your fingers closer together and make sure the stick doesn't lose its balance.
When your fingers come together and the stick is parallel to the floor, you have reached your goal.
Place the stick on the table, keeping your finger on the desired mark. Use a ruler to make sure you have completed the task accurately.

Tell your child that you found not just the middle of the stick, but its center of mass. If the object is symmetrical, then it will coincide with its middle.

6. Zero gravity in a jar

Let's make the needles hang in the air. To do this, let's take:

2 threads of 30 cm;
2 needles;
transparent tape;
liter jar and lid;
ruler;
small magnet.

How to conduct the experiment?

Thread the needles and tie the ends with two knots.
Tape the knots to the bottom of the jar, leaving about 1 inch (2.5 cm) to the edge.
From the inside of the lid, glue the tape in the form of a loop, with the sticky side facing out.
Place the lid on the table and glue a magnet to the hinge. Turn the jar over and screw on the lid. The needles will hang down and be drawn towards the magnet.
When you turn the jar upside down, the needles will still be drawn to the magnet. You may need to lengthen the threads if the magnet does not hold the needles upright.
Now unscrew the lid and place it on the table. You are ready to perform the experiment in front of an audience. As soon as you screw on the lid, the needles from the bottom of the jar will shoot up.

Tell your child that a magnet attracts iron, cobalt and nickel, so iron needles are susceptible to its influence.

7. “+” and “-”: beneficial attraction

Your child has probably noticed how hair is magnetic to certain fabrics or combs. And you told him that static electricity is to blame. Let's do an experiment from the same series and show what else the “friendship” of negative and positive charges can lead to. We will need:

paper towel;
1 tsp. salt and 1 tsp. pepper;
spoon;
balloon;
woolen item.

Experiment stages:

Place a paper towel on the floor and sprinkle the salt and pepper mixture on it.
Ask your child: how to separate salt from pepper now?
Rub the inflated balloon on a woolen item.
Season it with salt and pepper.
The salt will remain in place, and the pepper will be magnetized to the ball.

After rubbing against the wool, the ball acquires a negative charge, which attracts positive ions from the pepper. The salt's electrons are not so mobile, so they do not react to the approach of the ball.

Experiences at home are valuable life experiences

Admit it, you yourself were interested in watching what was happening, and even more so for the child. By performing amazing tricks with the simplest substances, you will teach your child: