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.
There is a strong tradition of beginning physics with careful measurements of volumes and masses and calculations of densities...
This activity allows pupils to make some measurements to measure the density of a material for themselves.
To appreciate the idea of density just imagine you can look deep inside a material. If the particles are packed closely...
For equivalent volumes of substances the statement heavy things sink and light things float is close to being true. However...
Recognising and celebrating outstanding contributions to the field of physics education.