Science at home! Fun homemade experiments for the little ones. Today we will learn about the Water Pressure! Experiment # 3
Let's see what it is about and what we need:
Materials:
A pot of water with its lid.
A nail or puncturing object to open holes in the pot.
Water.
A container to prevent water from spilling
As is usual, review the theoretical part so that the children know what it is about and what we are studying.
Principle of Hydrostatic:
The fundamental principle of hydrostatics states that the pressure exerted by the water depends on the depth. The deeper, the more pressure. Source
Atmospheric pressure
Atmospheric pressure is the weight of the column of air over any point or place on the earth and is therefore the weight per unit area.
The higher the height, the lower the atmospheric pressure and the lower the height and the closer it gets to sea level, the greater the pressure. Source
Process:
- To perform our experiment we make two or three holes (at the same height) in a plastic bottle, temporarily cover them with electrical tape and fill the bottle completely with water. We do not put the cap on the bottle.
When removing the tape and uncovering the holes it is observed that water comes out horizontally.
The water contained in the bottle exerts perpendicular forces on the walls of the container that drives the water through the holes.
- If we tilt the bottle, the water comes out in a direction perpendicular to the surface of the bottle, not horizontally. As shown in the video.
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