ScienceA37

Science A37: Pumping Air

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Award-winning video and lesson investigations for young children on the topic of air pressure

Product Description

Video and lesson investigations on the topic of pumps and air pressure . Key concepts include:

  • An air pump forces air from one place to another.
  • Air pumps can be used to inflate flexible containers with air, especially if they are ‘air-tight’.
  • Air contained in a container can give it strength.
  • The air, which is a mixture of invisible gases, pushes against the walls of the flexible container, just as the walls of the container push back against the air.
  • The more air that is put into a flexible container, the more pressure is exerted against the walls of the container by the air.
  • This pressure, in turn, pushes against anything in contact with the outside of the container.
  • The inflating ability of air is very useful.
  • It has many everyday uses.
  • To work properly inflatables must be completely air-tight after inflation.
  • Valves let the air in and prevent it escaping out again.

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