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States and the particle model

States and the particle model

Particle model comparison showing solid, liquid and gas with particle spacing, arrangement and motion labelled

Matter has mass and takes up space. It can exist as a solid, liquid or gas. Kinetic particle theory explains these states by treating substances as tiny particles that are always moving.

Solids, liquids and gases Lesson

  1. IGCSE
  2. /Chemistry
  3. /Solids, liquids and gases

Step-by-step lessons covering CIE IGCSE Chemistry Solids, liquids and gases for Core and Extended tier. Each lesson works through exam-style questions in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended), plus Paper 5 or Paper 6 format. Build a solid grasp of atomic structure, bonding and the mole concept early, since these underpin almost every other topic, then move on to the more calculation-heavy quantitative and organic chemistry content.

Lessons