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.