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.