Which statement is explained by reference to pressure?
An iron nail sinks in water, but a wooden block floats.
A sharp knife cuts food more easily than a blunt knife.
A stone dropped from a building falls to the ground.
A puddle of water dries up on a sunny day.
188 exam-style questions on CIE IGCSE Physics Pressure, covering Pressure. Each one has a worked solution and a mark scheme showing where the marks go.