It turns out that with the help of an ordinary balloon a lot of exciting and informative experiences can be made with children. Believe me, these experiments will be interesting even for older children, so feel free to buy multi-colored balls and get started!
Eh, if everything in life was as simple as in this experience, women would regularly spend time in freezers and jumped merrily in the snowdrifts in winter, hoping to lose some weight. Judge for yourself. Inflate the ball and measure its waist. We got 54 cm. Now we ship it in the freezer (we tried to shove it in the fridge, but there was no effect).
You need to wait 30 minutes, get the ball and measure. Surprisingly, during this time our air friend sank 2 cm! Now his waist is 52 cm! The thing is that the air is compressed in the cold and takes up less volume, so the ball has lost weight.
For this experience you will need water and a candle. We did an experiment in the bathroom, because I did not believe that the ball that we would hold over the candle would not burst from the heat of its flame. The trick is that we pre-fill the ball with water (we took the cold to heighten the effect). Now you can not be afraid, and bring it to an open fire. The ball was only charred, but it was not damaged at all.
The solution is simple – the thing is that the water in the balloon takes all the heat of the candle on itself, and its surface does not heat up due to this. You can even show your child anti-experience and bring an ordinary ball to a candle. He will burst immediately.
Now we will show the children what carbon dioxide is. Pour soda into the bottle and add vinegar to it. Immediately go reaction, which is familiar to many hostesses and which we call soda extinguish. Soda will sizzle and foam will appear, and carbon dioxide will form during the reaction. Quickly we put a ball on the neck of the bottle and look. After a couple of minutes, he will start cracking up and inflating with carbon dioxide!
Jet engine machine
The next experience will appeal to boys, but he also caused a storm of delight in my daughters. Especially everyone laughed when we tried to install the ball on the machine. But first things first. We fasten the tube for drinks in the hole for inflation. We insert it deeper, and properly tied, but so that the ball can be inflated through a straw.
Now we clamp the tube with a finger, and set the ball on the machine. This is the most difficult, because the ball begins to rush around the room as soon as you release your finger. We took a piece of tape and fixed the ball on the machine. Now let go of the finger and due to the air escaping from the ball, the machine is racing like the wind. True, not for long. Explain to the child that jet engines are built on the same principle.
We pierce the ball
Now you need to take the inflated ball and glue a piece of scotch tape to its upper part (where there is a seal). Now we take a needle and pierce a ball in this place. He does not burst! The secret of the experience is that the tape does not allow the pressure to break the ball, and the needle itself closes the hole, not allowing air to escape.
We hope you enjoy these simple and informative experiences! We had a lot of fun yesterday doing them. What and you wish 🙂