Explain convection in liquids and gases in terms of density changes and describe experiments to illustrate convection

Explain applications and consequences of thermal expansion in the context of common examples, including the liquid-in-glass thermometer

Explain everyday applications using ideas about conduction, convection and radiation, including: (a) heating objects such as kitchen pans (b) heating a room by convection (c) measuring temperature using an infrared thermometer (d) using thermal insulation to maintain the temperature of a liquid and to reduce thermal energy transfer in buildings