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The Particle Model

The Particle Model

Particle model showing solid, liquid, and gas arrangements

Everything around us is made of tiny particles like atoms and molecules. Kinetic theory explains that these particles are constantly moving, and their arrangements define whether a substance is a solid, liquid, or gas.

Density and states of matter Lesson

  1. GCSE
  2. /Physics
  3. /Density and states of matter

Step-by-step lessons covering Edexcel GCSE Physics Density and states of matter for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Master the required practical work and core equations early, since both papers can draw on content and maths skills from across the whole specification.

Lessons