Which description of freezing is correct?
a solid changing into a liquid as its molecules gain energy
a liquid changing into a solid as its molecules lose energy
a solid changing into a liquid as its molecules lose energy
a liquid changing into a solid as its molecules gain energy
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.