Air Pressure and Altitude

Air Pressure and Altitude

Air pressure is the force exerted by the weight of air molecules in Earth’s atmosphere. As altitude increases and you rise above sea level, the number of air molecules decreases, causing air pressure to drop. This change in air pressure with height affects breathing, we...

Imagine air as tiny bits called particles. These particles are constantly moving and bumping into things, creating pressure that surrounds us all the time.

This happens because air has weight, and gravity pulls most of it close to the Earth, causing high air pressure at the surface.

This air pressure presses equally in all directions...