Simple science experiment on how to create vacuum.

What is vacuum ?
Vacuum is the space from which all the matter has been taken out.

Materials required-

1.Candle
2.Matchsticks
3.Plate
4.Colored water
5.Empty glass

Procedure-

1.Light up the candle and fix it on empty plate.
2.Pour some colored water in the plate.
3.Carefully cover the candle with empty glass.

Watch what happens-

Candle extinguishes itself and water rise up in the glass

Why this happens ?

1. Fire needs oxygen to burn.
2. Candle flame uses all the oxygen in the glass for burning.
3. When all the oxygen is used up the candle extinguishes by itself.
4. Now the air pressure is low inside the glass and air is lighter
5. And air pressure is heavier outside the glass and air is heavier,.
6.This creates vacuum and makes water rise up in the glass.
7.Oxygen in the glass is consumed by the flame to burn and this is
replaced by the water.

свернуть