Demonstration: This shows that carbon dioxide and hydrogen have very different densities to air.
Demonstration: These are demonstrations of gaseous diffusion through porous pots.
Demonstration: This compares the speed of sound at different pressures and in different gases.
Demonstration: An oscilloscope is used to time a pulse of sound travelling from a speaker to a microphone.
Demonstration: An oscilloscope is used to find the time of travel of a pulse of sound generated by its time-base.
Class practical: Echoes are used outdoors to estimate the speed of sound. Good weather has to be ordered at the same time as...
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