Experiments in physics. Simple experiments

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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.

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

Fireproof ball

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.

Pencils

You will need: plastic bag, pencils, water.

Experience: Fill the plastic bag halfway with water. Use a pencil to pierce the bag through the place 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.

Unbreakable balloon

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.

Cauliflower

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.

floating egg

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.

Crystal lollipops

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 a fire. 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.

Lighted match

Will be needed: Matches, flashlight.

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.

Introduction

Without a doubt, all our knowledge begins with experiments.
(Kant Emmanuel. German philosopher g.)

Physics experiments introduce students to the diverse applications of the laws of physics in a fun way. Experiments can be used in lessons to attract students’ attention to the phenomenon being studied, when repeating and consolidating educational material, and at physical evenings. Entertaining experiences deepen and expand students' knowledge, promote the development of logical thinking, and instill interest in the subject.

The role of experiment in the science of physics

The fact that physics is a young science
It’s impossible to say for sure here.
And in ancient times, learning science,
We always strived to comprehend it.

The purpose of teaching physics is specific,
Be able to apply all knowledge in practice.
And it’s important to remember – the role of experiment
Must stand first.

Be able to plan an experiment and carry it out.
Analyze and bring to life.
Build a model, put forward a hypothesis,
Striving to reach new heights

The laws of physics are based on facts established empirically. Moreover, the interpretation of the same facts often changes in the course of the historical development of physics. Facts accumulate through observation. But you can’t limit yourself to them only. This is only the first step towards knowledge. Next comes the experiment, the development of concepts that allow for qualitative characteristics. In order to draw general conclusions from observations and find out the causes of phenomena, it is necessary to establish quantitative relationships between quantities. If such a dependence is obtained, then a physical law has been found. If a physical law is found, then there is no need to experiment in each individual case; it is enough to perform the appropriate calculations. By experimentally studying quantitative relationships between quantities, patterns can be identified. Based on these laws, a general theory of phenomena is developed.

Therefore, without experiment there can be no rational teaching of physics. The study of physics involves the widespread use of experiments, discussion of the features of its setting and the observed results.

Entertaining experiments in physics

The description of the experiments was carried out using the following algorithm:

Name of the experiment Equipment and materials required for the experiment Stages of the experiment Explanation of the experiment

Experiment No. 1 Four floors

Devices and materials: glass, paper, scissors, water, salt, red wine, sunflower oil, colored alcohol.

Stages of the experiment

Let's try to pour four different liquids into a glass so that they do not mix and stand five levels above each other. However, it will be more convenient for us to take not a glass, but a narrow glass that widens towards the top.

Pour salted tinted water into the bottom of the glass. Roll up a “Funtik” from paper and bend its end at a right angle; cut off the tip. The hole in the Funtik should be the size of a pin head. Pour red wine into this cone; a thin stream should flow out of it horizontally, break against the walls of the glass and flow down it onto the salt water.
When the height of the layer of red wine is equal to the height of the layer of colored water, stop pouring the wine. From the second cone, pour sunflower oil into a glass in the same way. From the third horn, pour a layer of colored alcohol.

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Experience No. 2 Amazing candlestick

Devices and materials: candle, nail, glass, matches, water.

Stages of the experiment

Isn't it an amazing candlestick - a glass of water? And this candlestick is not bad at all.

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Figure 3

Explanation of experience

The candle goes out because the bottle is “flown around” with air: the stream of air is broken by the bottle into two streams; one flows around it on the right, and the other on the left; and they meet approximately where the candle flame stands.

Experiment No. 4 Spinning snake

Devices and materials: thick paper, candle, scissors.

Stages of the experiment

Cut a spiral out of thick paper, stretch it a little and place it on the end of a curved wire. Hold this spiral above the candle in the rising air flow, the snake will rotate.

Explanation of experience

The snake rotates because air expands under the influence of heat and warm energy is converted into movement.

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Figure 5

Explanation of experience

Water has a higher density than alcohol; it will gradually enter the bottle, displacing the mascara from there. Red, blue or black liquid will rise upward from the bubble in a thin stream.

Experiment No. 6 Fifteen matches on one

Devices and materials: 15 matches.

Stages of the experiment

Place one match on the table, and 14 matches across it so that their heads stick up and their ends touch the table. How to lift the first match, holding it by one end, and all the other matches along with it?

Explanation of experience

To do this, you just need to put another fifteenth match on top of all the matches, in the hollow between them.

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Figure 7

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Figure 9

Experience No. 8 Paraffin motor

Devices and materials: candle, knitting needle, 2 glasses, 2 plates, matches.

Stages of the experiment

To make this motor, we don't need either electricity or gasoline. For this we only need... a candle.

Heat the knitting needle and stick it with their heads into the candle. This will be the axis of our engine. Place a candle with a knitting needle on the edges of two glasses and balance. Light the candle at both ends.

Explanation of experience

A drop of paraffin will fall into one of the plates placed under the ends of the candle. The balance will be disrupted, the other end of the candle will tighten and fall; at the same time, a few drops of paraffin will drain from it, and it will become lighter than the first end; it rises to the top, the first end will go down, drop a drop, it will become lighter, and our motor will start working with all its might; gradually the candle's vibrations will increase more and more.

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Figure 11

Demonstration experiments

1. Diffusion of liquids and gases

Diffusion (from Latin diflusio - spreading, spreading, scattering), the transfer of particles of different nature, caused by the chaotic thermal movement of molecules (atoms). Distinguish between diffusion in liquids, gases and solids

Demonstration experiment “Observation of diffusion”

Devices and materials: cotton wool, ammonia, phenolphthalein, diffusion observation device.

Stages of the experiment

Let's take two pieces of cotton wool. We moisten one piece of cotton wool with phenolphthalein, the other with ammonia. Let's bring the branches into contact. The fleeces are observed to turn pink due to the phenomenon of diffusion.

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Figure 13

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Figure 15

Let us prove that the phenomenon of diffusion depends on temperature. The higher the temperature, the faster diffusion occurs.

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Figure 17

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Figure 19

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Figure 21

3.Pascal's ball

Pascal's ball is a device designed to demonstrate the uniform transfer of pressure exerted on a liquid or gas in a closed vessel, as well as the rise of the liquid behind the piston under the influence of atmospheric pressure.

To demonstrate the uniform transfer of pressure exerted on a liquid in a closed vessel, it is necessary to use a piston to draw water into the vessel and place the ball tightly on the nozzle. By pushing the piston into the vessel, demonstrate the flow of liquid from the holes in the ball, paying attention to the uniform flow of liquid in all directions.

Entertaining experiences.
Extracurricular activity for middle school.

Extracurricular event in physics for middle classes “Entertaining experiments”

Develop cognitive interest, interest in physics;
- develop competent monologue speech using physical terms, develop attention, observation, and the ability to apply knowledge in a new situation;
- teach children to communicate in a friendly manner.

Teacher: Today we will show you interesting experiments. Watch carefully and try to explain them. Those who excel in their explanations will receive prizes - good and excellent grades in physics.

(students of the 9th grade show experiments, and students of the 7th-8th grades explain)

Experiment 1 “Without getting your hands wet”

Equipment: plate or saucer, coin, glass, paper, matches.

How to do it: Place a coin on the bottom of a plate or saucer and pour in some water. How to get a coin without even getting your fingertips wet?

Solution: Light the paper and place it in the glass for a while. Turn the heated glass upside down and place it on a saucer next to the coin.

As the air in the glass heats up, its pressure will increase and some of the air will escape. After some time, the remaining air will cool and the pressure will decrease. Under the influence of atmospheric pressure, the water will enter the glass, releasing the coin.

Experiment 2 “Lifting a plate of soap”

Equipment: plate, piece of laundry soap.

Procedure: Pour water into a plate and drain immediately. The surface of the plate will be damp. Then, pressing the bar of soap firmly against the plate, turn it several times and lift it up. At the same time, the plate will rise with soap. Why?

Explanation: The lifting of the dish with soap is explained by the attraction of the molecules of the dish and soap.

Experiment 3 “Magic water”

Equipment: a glass of water, a sheet of thick paper.

Conduct: This experiment is called “Magic Water”. Fill a glass with water to the brim and cover it with a sheet of paper. Let's turn the glass over. Why doesn't water pour out of an upside down glass?

Explanation: Water is held by atmospheric pressure, i.e. atmospheric pressure is greater than the pressure produced by water.

Notes: The experiment works better with a thick-walled vessel.
When turning the glass over, the sheet of paper must be held with your hand.

Experiment 4 “Untearable paper”

Equipment: two tripods with couplings and legs, two paper rings, a staff, a meter.

Carrying out: We hang the paper rings on tripods at the same level. We'll put a rail on them. When struck sharply with a meter or metal rod in the middle of the rack, it breaks, but the rings remain intact. Why?

Explanation: The interaction time is very short. Therefore, the rack does not have time to transfer the received impulse to the paper rings.

Notes: The width of the rings is 3 cm. The rail is 1 meter long, 15-20 cm wide and 0.5 cm thick.

Experiment 5 “Heavy Newspaper”

Equipment: strip 50-70 cm long, newspaper, meter.

Conduct: Place a slate on the table and a fully unrolled newspaper on it. If you slowly apply pressure to the hanging end of the ruler, it goes down, and the opposite one rises along with the newspaper. If you sharply hit the end of the rail with a meter or a hammer, it breaks, and the opposite end with the newspaper does not even rise. How to explain this?

Explanation: Atmospheric air exerts pressure on the newspaper from above. By slowly pressing on the end of the ruler, air penetrates under the newspaper and partially balances the pressure on it. With a sharp impact, due to inertia, the air does not have time to instantly penetrate under the newspaper. The air pressure on the newspaper from above is greater than from below, and the rail breaks.

Notes: The rail should be placed so that its end hangs 10 cm. The newspaper should fit snugly against the rail and table.

Experience 6

Equipment: tripod with two couplings and legs, two demonstration dynamometers.

Carrying out: Let's attach two dynamometers - devices for measuring force - on a tripod. Why are their readings the same? What does this mean?

Explanation: bodies act on each other with forces equal in magnitude and opposite in direction. (Newton's third law).

Experience 7

Equipment: two sheets of paper identical in size and weight (one of them is crumpled).

Carrying out: Let's release both sheets at the same time from the same height. Why does a crumpled piece of paper fall faster?

Explanation: A crumpled piece of paper falls faster because there is less air resistance acting on it.

But in a vacuum they would fall simultaneously.

Experiment 8 “How quickly a candle goes out”

Equipment: glass vessel with water, stearin candle, nail, matches.

Conduct: Light a candle and lower it into a vessel with water. How quickly will the candle go out?

Explanation: The flame appears to be filled with water as soon as the section of the candle protruding above the water burns and the candle goes out.

But, as it burns, the candle decreases in weight and floats up under the influence of Archimedean force.

Note: Attach a small weight (nail) to the end of the candle from below so that it floats in the water.

Experiment 9 “Fireproof paper”

Equipment: metal rod, strip of paper, matches, candle (alcohol lamp)

How to carry out: Wrap the rod tightly with a strip of paper and place it in the flame of a candle or alcohol lamp. Why doesn't the paper burn?

Explanation: Iron, having good thermal conductivity, removes heat from the paper, so it does not catch fire.

Experiment 10 “Fireproof scarf”

Equipment: tripod with clutch and foot, alcohol, handkerchief, matches.

How to do it: Hold a handkerchief (previously moistened with water and wrung out) in the tripod foot, pour alcohol on it and set it on fire. Despite the flames engulfing the scarf, it will not burn. Why?

Explanation: The heat released during the combustion of alcohol was completely used to evaporate the water, so it cannot ignite the fabric.

Experiment 11 “Fireproof thread”

Equipment: tripod with coupling and foot, feather, regular thread and thread soaked in a saturated solution of table salt.

How to do it: Hang a feather on a thread and set it on fire. The thread burns and the feather falls. Now let’s hang a feather on a magic thread and set it on fire. As you can see, the magic thread burns out, but the feather remains hanging. Explain the secret of the magic thread.

Explanation: The magic thread was soaked in a solution of table salt. When the thread is burned, the feather is held on by fused crystals of table salt.

Note: The thread should be soaked 3-4 times in a saturated salt solution.

Experiment 12 “Water is boiling in a paper pan”

Equipment: tripod with coupling and foot, paper pan on strings, alcohol lamp, matches.

How to do it: Hang the paper pan on a tripod.

Is it possible to boil water in this pan?

Explanation: All the heat released during combustion goes to heat the water. In addition, the temperature of the paper pan does not reach the ignition temperature.

Interesting questions.

Teacher: While the water is boiling, you can ask the audience questions:

What grows upside down? (icicle)

I swam in the water, but remained dry. (Goose, duck)

Why don't waterfowl get wet in water? (The surface of their feathers is covered with a thin layer of fat, and water does not wet the fatty surface.)

Even a child can lift him from the ground, but not even a strong man can throw him over a fence. (Pushinka)

The window is broken during the day and put back in place at night. (Ice hole)

The results of the experiments are summed up.

Grading.

2015-

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.

Where do real scientists come from? After all, someone makes extraordinary discoveries, invents ingenious devices that we use. Some even receive worldwide recognition in the form of prestigious awards. According to teachers, childhood is the beginning of the path to future discoveries and achievements.

Do primary schoolchildren need physics?

Most school programs require the study of physics from the fifth grade. However, parents are well aware of the many questions that arise in inquisitive children of primary school age and even preschoolers. Experiments in physics will help open the way to the wonderful world of knowledge. For schoolchildren aged 7-10 years old, they will, of course, be simple. Despite the simplicity of the experiments, but having understood the basic physical principles and laws, children feel like omnipotent wizards. This is wonderful, because a keen interest in science is the key to successful studies.

Children's abilities do not always reveal themselves. It is often necessary to offer children a certain scientific activity, only then do they develop inclinations towards this or that knowledge. Home experiments are an easy way to find out whether your child is interested in natural sciences. Little discoverers of the world rarely remain indifferent to “wonderful” actions. Even if the desire to study physics does not clearly manifest itself, it is still worth laying down the basics of physical knowledge.

The simplest experiments carried out at home are good because even shy, self-doubting children are happy to do home experiments. Achieving the expected result gives rise to self-confidence. Peers enthusiastically accept demonstrations of such “tricks,” which improves relationships between children.

Requirements for conducting experiments at home

To make studying the laws of physics at home safe, you must take the following precautions:

1. Absolutely all experiments are carried out with the participation of adults. Of course, many studies are safe. The trouble is that guys don’t always draw a clear line between harmless and dangerous manipulations.
2. You must be especially careful if sharp, piercing or cutting objects or open fire are used. The presence of elders is mandatory here.
3. The use of toxic substances is prohibited.
4. The child needs to describe in detail the order of actions that should be performed. It is necessary to clearly formulate the purpose of the work.
5. Adults must explain the essence of the experiments, the principles of operation of the laws of physics.

Simple research

You can begin to get acquainted with physics by demonstrating the properties of substances. These should be the simplest experiments for children.

Important! It is advisable to anticipate possible children’s questions in order to answer them in as much detail as possible. It’s unpleasant when mom or dad suggest conducting an experiment, vaguely understanding what it confirms. Therefore, it is better to prepare by studying the necessary literature.

Different density

Every substance has a density that affects its weight. Different indicators of this parameter have interesting manifestations in the form of a multilayer liquid.

Even preschoolers can conduct such simple experiments with liquids and observe their properties.
For the experiment you will need:

• sugar syrup;
• vegetable oil;
• water;
• glass jar;
• several small objects (for example, a coin, a plastic bead, a piece of foam, a pin).

The jar needs to be filled approximately 1/3 with syrup, add the same amount of water and oil. The liquids will not mix, but will form layers. The reason is density; a substance with a lower density is lighter. Then, one by one, you need to lower the items into the jar. They will “freeze” at different levels. It all depends on how the densities of liquids and objects relate to each other. If the density of the material is less than the liquid, the thing will not sink.

floating egg

You will need:

• 2 glasses;
• tablespoon;
• salt;
• water;
• 2 eggs.

Both glasses need to be filled with water. Dissolve 2 full tablespoons of salt in one of them. Then you should lower the eggs into the glasses. In normal water it will sink, but in salt water it will float. Salt increases the density of water. This explains the fact that it is easier to swim in sea water than in fresh water.

Surface tension of water

Children should be explained that molecules on the surface of a liquid attract each other, forming a thin elastic film. This property of water is called surface tension. This explains, for example, the water strider’s ability to glide across the water surface of a pond.

Non-Spillable Water

Necessary:

• glass beaker;
• water;
• paper clips.

The glass is filled to the brim with water. It seems that one paperclip is enough to cause the liquid to spill. Carefully insert the paper clips into the glass one by one. Having lowered about a dozen paper clips, you can see that the water does not pour out, but forms a small dome on the surface.

Floating matches

Necessary:

• Bowl;
• water;
• 4 matches;
• liquid soap.

Pour water into a bowl and put in matches. They will be practically motionless on the surface. If you drop detergent into the center, the matches will instantly spread to the edges of the bowl. Soap reduces the surface tension of water.

Entertaining experiments

Working with light and sound can be very spectacular for children. Teachers claim that entertaining experiments are interesting for children of different ages. For example, the physical experiments proposed here are also suitable for preschoolers.

Glowing "lava"

This experiment does not create a real lamp, but nicely simulates the operation of a lamp with moving particles.
Necessary:

• glass jar;
• water;
• vegetable oil;
• salt or any effervescent tablet;
• food coloring;
• flashlight.

The jar needs to be filled about 2/3 with colored water, then add oil almost to the brim. Sprinkle a little salt on top. Then go into a darkened room and illuminate the jar from below with a flashlight. The grains of salt will sink to the bottom, taking droplets of fat with them. Later, when the salt dissolves, the oil will rise to the surface again.

Home Rainbow

Sunlight can be broken down into multi-colored rays that make up the spectrum.

Necessary:

• bright natural light;
• cup;
• water;
• tall box or chair;
• large sheet of white paper.

On a sunny day, you should place paper on the floor in front of a window that lets in bright light. Place a box (chair) nearby and place a glass filled with water on top. A rainbow will appear on the floor. To see the colors in full, just move the paper and catch it. A transparent container with water acts as a prism that splits the beam into parts of the spectrum.

Doctor's stethoscope

Sound travels through waves. Sound waves in space can be redirected and amplified.
You will need:

• a piece of rubber tube (hose);
• 2 funnels;
• plasticine.

You need to insert a funnel into both ends of the rubber tube, securing it with plasticine. Now it is enough to put one to your heart, and the other to your ear. The heartbeat can be clearly heard. The funnel “collects” the waves; the inner surface of the tube does not allow them to dissipate in space.

A doctor's stethoscope works on this principle. In the old days, hearing aids for hearing-impaired people had approximately the same device.

Important! Do not use loud sound sources as this may damage your hearing.

Experiments

What is the difference between experiment and experience? These are research methods. Usually the experiment is carried out with a pre-known result, demonstrating an already understood axiom. The experiment is designed to confirm or refute the hypothesis.

For children, the difference between these concepts is almost imperceptible; any action is performed for the first time, without a scientific basis.

However, often awakened interest pushes children to new experiments arising from the already known properties of materials. This kind of independence should be encouraged.

Freezing liquids

Matter changes properties with changes in temperature. Children are interested in the change in the properties of all kinds of liquids when they turn into ice. Different substances have different freezing points. Also, at low temperatures their density changes.

Note! When freezing liquids, use only plastic containers. It is not advisable to use glass containers, as they may burst. The reason is that when liquids freeze, they change their structure. Molecules form crystals, the distance between them increases, and the volume of the substance increases.

• If you fill different molds with water and orange juice and leave them in the freezer, what will happen? The water will already freeze, but the juice will partially remain liquid. The reason is the freezing point of the liquid. Similar experiments can be carried out with different substances.
• By pouring water and oil into a transparent container, you can see the familiar separation. Oil floats to the surface of the water because it is less dense. What can be observed when a container with contents is frozen? Water and oil change places. The ice will be on top, the oil will now be at the bottom. As the water froze, it became lighter.

Working with a magnet

The manifestation of the magnetic properties of various substances is of great interest to younger schoolchildren. Interesting physics suggests checking these properties.

Experiment options (magnets will be needed):

Testing the ability to attract various objects

You can keep records indicating the properties of materials (plastic, wood, iron, copper). An interesting material is iron filings, the movement of which looks fascinating.

Study of the ability of a magnet to act through other materials.

For example, a metal object is exposed to a magnet through glass, cardboard, or a wooden surface.

Consider the ability of magnets to attract and repel.

Study of magnetic poles (like poles repel, unlike poles attract). A spectacular option is to attach magnets to floating toy boats.

Magnetized needle - analogue of a compass

In water, it indicates the direction "north - south". The magnetized needle attracts other small objects.

1. It is advisable not to overload the little researcher with information. The purpose of the experiments is to show how the laws of physics work. It is better to examine one phenomenon in detail than to endlessly change directions for the sake of entertainment.
2. Before each experiment, it is easy to explain the properties and characteristics of the objects involved in them. Then sum it up with your child.
3. Safety rules deserve special attention. The beginning of each lesson is accompanied by instructions.

Scientific experiments are exciting! Perhaps it will be the same for parents. Together, discovering new sides of ordinary phenomena is doubly interesting. It is worth throwing away everyday worries and sharing the childhood joy of discovery.