Lung Experiments For Kids

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Lung experiments for kids 1: BREATHE WITH THE BOTTLE

Sit down with the kids and take them with a few breathing exercises. Yawn, stretch, take a deep breath. Such as the air enters the lungs? How do we manage to breathe? Take the bottle from the experiment “Unaufpustbar” and tell the children, the balloon is like her lungs. And so there can get in air, the drum his place around. But where should be the place in the chest, because it’s all fully ?

Use the bottle with air balloon experiment “Unaufpustbar”. Take a safety pin and hold the pointed end so long over a candle until it glows. Melted with the hot tip at best several holes in the bottom of the bottle.

So it goes

Cut away from the nozzle of a balloon down so that there arises a large hole about two inches. Now tighten the broken air balloon over the bottom of the bottle.

This happens

If you draw now on the air balloon at the bottom of the bottle, the balloon blows into the bottle for something. Let’s take the kids. Who Wins the “deepest breath,” Who is there inside the balloon can breathe evenly? Who can “breathe” the same balloon with your own breath?

The background

By pulling on the balloon skin at the base of the bottle free space for additional air particles that can flow into the bottle. But this is only on the bottle opening, however, depends on the air in the balloon. This is blown up by the now incoming air.
Due to the volume expansion after pulling down the balloon skin creates a negative pressure in the bottle; Finally, the same number of air particles distributed in a larger volume. As a result of the higher outside air balloon by the air pressure is inflated just as far, has once again set up an equalization of pressure between the inside and outside.

Therefore, it is interesting

When we breathe we take in any air balloon, but move our “diaphragm”, which is permanently installed in the body. The diaphragm is a muscle and forms a disk that lies horizontally approximately in the middle of our trunk. If it moves downward, the lungs fill with air. This is the belly breathing, which we feel when we take a deep breath and fill up our lungs with fresh air deep down.
In addition to the abdominal breathing, there is the chest breathing. The chest expands when inhaled, this air flows into the lungs. In analogy to our ‘bottle-lung “while the walls of the bottle would be quite drawn out.
In an accident as people are sometimes injured so badly that one lung had a hole. This is dangerous, because then it no longer fills up with air because the air escapes through the hole. It’s as if the balloon has a hole in the bottle. Then the air passes through the hole down into the bottle.Similarly, it is when the diaphragm has a hole.

In the back of the head

We need to breathe for two reasons: When inhaled is absorbed oxygen from the air. The oxygen is necessary so that we can gain energy from food. In this energy but also created waste products, such as another gas, carbon dioxide.Too much carbon dioxide is poisonous to us, so it is when you exhale again removed from the body.
Inside the lung, the so-called alveoli, is contained in the air vital oxygen into the blood. They form a “breathable” surface of around 100 hectares – which is larger than the area of ​​many homes For comparison, the surface of the body of an adult, so the skin is, however nearly 2 m is the only way in a short time from a lot of oxygen.! Filter the air.


How many times a person breathes? Measure once, how much does a child breaths per minute. A five-year breathing at rest about 20-30 times, 40-50 times an infant, while adults only 12-20 times a minute. Perhaps there is the opportunity to observe a baby while sleeping and to count his breaths.
Also interesting is how much air we inhale and exhale. Here, a balloon help in the clean blow when we exhale. How fast is it growing? They give the kids to an air balloon that had been blown up once, so they will not blow in so strongly.

Lung experiments for kids 2:  Theoretical knowledge
Today, the teacher with the children about the pollutants that are in a cigarette and talked their risks. Was first discussed in which way the smoke enters the lungs. The children could see it well using a tube and explain. They explained that the smoke from the mouth through the throat to the lungs to the bronchi. Likewise, the children explained what happens to the veins and arteries where the pollutants enter the bloodstream. The children told of the risks of smoking such as:

  • Lung Cancer
  • Smoking leg
  • Stroke
  • Arterial narrowing
  • Smokers cough

The teacher told the children that someone who smokes 20 cigarettes a day takes in about one cup of tar itself.

Through various experiments, we demonstrated the children what happens when you smoke in the lungs.


We have referred to the children three experiments.

1st Experiment:

It has been shown to the children looks like a handkerchief when you blow the smoke you exhale through it. The children were clearly that if you smoke “on the lungs,” stick a lot more pollutants into the lungs. Then set up the second experiment, we challenged with a soft toothbrush, sand and Teersalbe.

2nd Experiment: 

First, sand was sprinkled on her toothbrush, and then turned Katrin around the brush and rubbed the bristles. Here, the sand fell back out of the brush and Kate said: “So too are the cilia in your lungs when you smoke does not enter the dust easily released during exhalation..” Then they smeared the Teersalbe turn on the brush and scattered sand on the brush. The sand fell when turning off, since the tar held him. Kate said: “The look of your cilia, if you smoke, you hold the dust in the lungs and thus clog the airways may arise a result of the smoker’s cough…”

3rd Experiment: 

Steffi gave the children two straws: one received a small and a large diameter with the children the task, one after the other with two straws to blow her nameplate from the table. Then she asked the children which straw it was difficult and what could be the reason. The children said, as expected, it was difficult with the thin straw. Steffi said: “So you have to imagine you with your veins, they become narrower, so that blood does not reach more quickly through the body also stick together through the cilia of the bronchial tubes and breathing is difficult..”

Cigarette machine 

Toward the end, we have played with the children, cigarette machine. This game is played in a circle of chairs. On this day, some were drawn with theoretical background, so we have introduced through the game for a change and movement.This game was even played several times in between, because it showed the kids a lot of fun.

Finally, the children received from us a homework assignment. We have to prepare a worksheet with the question: “Why is it smoked?” The children now have many harmful consequences of cigarette and met. Actually you should, if you know this did not reach for a cigarette. To this question, should the children sit at home critically.