» Chemistry and experiments »Experience how to inflate a balloon

Experience how to inflate a balloon

Everyone knows that children do not like to go to school and study, especially they do not like some school subjects, especially chemistry with its boring formulas and not very interesting experiences. There is a way to instill in them a love for this boring subject with the help of simple, but entertaining experiences. Such experiments will be mastered by every sensible student. But it’s best to do all the tricky, intricate activities under the supervision of adults. One of them is experience with an ordinary balloon, which everyone has in the house where the children live.


Let's start experimenting! The essence of this experience is to use simple home kitchen utensils, which are well-known representatives of acid and alkali: vinegar and soda, inflate a balloon without using your own lungs or air flow. To carry out such an experimental operation, we need the following things: an empty plastic bottle, a fairly small volume (0.2-0.4 liters), a small funnel, table vinegar, preferably 9-12%, soda used for culinary baking and a balloon.

Using a funnel, pour half a glass of vinegar into the bottle. Do not rush, be careful. Remember that sprays of vinegar corrode the mucous membrane of the eye, keep the glass and the bottle at arm's length. The brushes themselves are better protected with rubber or latex gloves, especially if the student is involved in the experiment. Do not leave the young chemist face to face with the experiment.

Then, with the help of the same funnel, we pour five tablespoons of soda into a ball and not into a bottle. That is, we insert a funnel at the mouth of the ball and carefully add a representative of alkali, that is, soda.

Pull the ball on the neck of the bottle. Soda begins to crumble into vinegar, begins to interact with it. A chemical acid - base reaction occurs visually, which proceeds with the release of gas. In this phenomenon, it emits carbon dioxide. It naturally rises upward, since its density is lighter than air, and abuts against the walls of the ball. The place of attachment of the ball to the neck of the bottle must be strengthened with a rope, or firmly pressed with your fingers, only with gloves on. The carbon dioxide concentration increases and the ball is inflated under gas pressure.

Simple visual chemistry will captivate every student.
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4 commentary
Carbon dioxide is heavier than air! It rises up, as it fills the whole bottle and it becomes easier for him to burst the ball than the bottle.
Very interesting. Only dad can teach this. I think sons will be delighted.
It’s dangerous for my son to show, he’s cheating with friends! but generally interesting
oh, kids and cheat. Then they don’t want to go to school at all, and mom’s vinegar and soda will be transferred from home)

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