A scientist is studying the behavior of nitrogen as it transitions from its solid crystalline state to its liquid state during a cryogenic cooling process.
Describe, in terms of particles, two differences between a solid and a liquid of the same substance.
55 exam-style questions on Edexcel GCSE Physics 14.1 Density and states of matter, covering 14.1.1 Kinetic theory and states of matter, 14.1.2 Density, and 14.1.3 Density and changes of state. Each one has a worked solution and a mark scheme showing where the marks go.