Solids, liquids, and gases are three states of matter. For each state of matter, describe the typical motion of the molecules.
An athlete's skin is wet with sweat after a race. After a short period of resting in a breeze, the sweat disappears.
State the name of the physical process that causes the sweat to disappear.
This process causes a cooling effect. Explain why this cooling effect occurs. Use your knowledge of molecules and energy in your response.
313 exam-style questions on CIE IGCSE Physics 2.2.3a Melting, boiling, condensation and solidification. Each one has a worked solution and a mark scheme showing where the marks go.