(a(i))[1]
Describe the movement of the particles in a solid.
(a(ii))[2]
On Fig. 4.2, add at least 10 particles to show how particles are arranged in a gas.
(a(iii))[2]
Describe the movement of the particles in a gas.
(b(i))[1]
State the name of the process responsible for the drop in the mass of water in the shallow dish.
(b(ii))[2]
Describe the process that causes the mass of water in the shallow dish to fall. Use particle ideas.