Big Idea: All matter is made of small particles and this can explain many of its properties. More info...
Demonstration: This rough method can produce a difference of mass of at least 8 g . With enough apparatus it could be done as...
Demonstration: This simple experiment gives a reasonable value for the density of air.
Demonstration: This could be a useful introduction to the idea of density of a liquid.
Demonstration: This method uses an equal-arm balance rather than a domestic spring balance.
Class practical: A simple method for comparing the density of liquids.
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