Homemade fountain. Fun physical experience at home

ENTERTAINING EXPERIENCES AT HOME
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Homemade fountain. Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

Take the lamp glass and pick up the cork that closes its narrow end. Make a hole in the cork. It can be drilled, turned with a faceted awl or burned with a hot nail. A glass tube bent in the shape of the letter "P" should fit tightly into the hole.

If you don't have lamp glass, you can take an empty tin can and poke a hole in the middle of the bottom with a large nail. Insert a tube into this hole and fill it with sealing wax inside and out so that the jar does not leak.

You can bend the glass tube over the flame of a gas or alcohol burner, candle, etc. Insert the tube into the upper, hottest part of the flame. Slowly turn it to warm up around the entire circumference. At the same time, lightly press with your fingers all the time, trying to bend the tube.

Attention! The tube began to feed. Don't rush, don't push harder. Bend smoothly and evenly to the desired angle. Do not stretch the tube so that it does not become thinner at the bend. Let the curved tube cool while holding it in your hands. Only after that you can put it or start bending it in another place. If you don't have a glass tube, try to get a metal one, such as copper, aluminum, or brass. It is bent without heating. Just before bending the metal tube, fill it with sand. Otherwise, the channel at the fold may close.

homemade fountain

After all these preparations, the experiment itself will seem very simple. Pinch the opening of the tube with your finger, turn the jar or lamp glass upside down and fill with water. When you open the exit from the tube, water will pour out of it in a fountain. It will work until the water level in the large vessel is equal to the open end of the tube. Try to explain why this is so.

Author: Galpershtein L.Ya.

We recommend interesting experiments in physics:

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