Liquids and gases are two states of matter.
State two ways in which evaporation differs from boiling.
After stepping out of an outdoor swimming pool on a windy day, a swimmer feels a cold sensation as the water evaporates from their skin. Explain, in terms of molecules, how this process cools the swimmer's skin.
A syringe is filled with a liquid and its nozzle is sealed. When the plunger is pushed, the volume of the liquid cannot be noticeably reduced. Explain, in terms of molecules, why liquids are incompressible.
528 exam-style questions on CIE IGCSE Physics 2.2 Thermal properties and temperature, covering 2.2.1 Thermal expansion of solids, liquids and gases, 2.2.2a Internal energy and temperature, 2.2.2b Specific heat capacity, 2.2.3a Melting, boiling, condensation and solidification, 2.2.3b Evaporation, and 2.2.3c Cooling by evaporation. Each one has a worked solution and a mark scheme showing where the marks go.