Which of the following processes is directly caused by thermal expansion?
liquid in a thermometer rising when placed in hot water
a puddle of water evaporating on a sunny afternoon
a wax candle melting as it burns
dew droplets forming on grass during a cool night
96 exam-style questions on CIE IGCSE Physics 2.2.1 Thermal expansion of solids, liquids and gases. Each one has a worked solution and a mark scheme showing where the marks go.