(a(i))[2]
Show how the molecules are arranged in a solid. Draw a diagram in the box above the word ‘solid’ in Fig. 6.1. Include at least 10 molecules.
(a(ii))[2]
Show how the molecules are arranged in a gas. Draw a diagram in the box above the word ‘gas’ in Fig. 6.1. Include at least 10 molecules.
(a(iii))[1]
State the name of the process by which a solid turns into a liquid.
(a(iv))[1]
State the name of the process by which a gas turns into a liquid.
(b(i))[1]
State the name given to the movement of the smoke particles.
(b(ii))[2]
Show how the smoke particle moves by drawing a series of lines on Fig. 6.3.
(b(iii))[1]
Describe any changes in the movement of the smoke particles.