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Listed under:  Science  >  Forces and energy  >  Molecular forces  >  Pressure  >  Air pressure
Moving Image

Properties and behaviour of gases

All substances are made up of tiny particles. A change in temperature can change the way these particles behave. Watch as the Surfing Scientist demonstrates how a gas behaves when it is heated. Find out whether the balloon gets sucked or pushed into the bottle!

Moving Image

The highs and lows of air pressure

Have you heard of Bernoulli's principle? In this clip a scientist shows how this principle explains the movement of air around an object, and the impact of air pressure on life. Watch as he puts people on the street to the test with a table-tennis ball and a plastic funnel.

Dataset

Weather observation: datasets

This website contains datasets for weather including humidity, water temperature, winds and air pressure collected at marine sites. The collection points are displayed on an interactive coloured map. Historical weather data are available. Graphs can be created and downloaded. The page also contains links to web cameras ...

Moving Image

Floating ping pong ball

A ping pong ball usually floats on the surface of water. Watch what happens to a ping pong ball in a tank of water as Ruben Meerman, the Surfing Scientist, experiments with the pressure of the air. (air pressure)

Interactive Resource

experiMENTALS: Levitating balloon

This resource contains a materials and instruction list and brief explanation for students about the process of levitating a balloon.