Materials Required An empty plastic bottle How to do it Make three small holes in one of the sides near the bottom of the bottle about 1/2 cm away from each other. The holes should like on the same height. Fill the bottle full with water and ask the child to observe the water streams coming out of the holes. Let the child observe what happens. The water from all the holes will come out equally. Explanation This is because the pressure is the same at all points at the same height.
How to do it
Explanation