#50
4.2.2.1 The three states of matter
Paper 1 · Higher combined
Spec reference: 4.2.2.1 (under 4.2.2).
What you need to know
- (Key facts / definitions / equations for this spec point)
Support videos
- FreeScienceLessons (topic playlist): (use links below)
- FreeScienceLessons (Structure & bonding playlist): https://www.youtube.com/playlist?list=PL9IouNCPbCxXmFgiKCM60Sglh-qOG_vlE
Self-assessment (checklist)
- I can name the three states of matter.
- I can name the changes of state that take place at the
- I can name the changes of state that take place at the
- I can represent the three states of matter using a simple
- I can explain melting, boiling, freezing and condensing
- I can describe how the amount of energy needed to
Key steps (method)
- Identify what the question is testing and use precise chemistry vocabulary.
- If it’s a calculation: write the equation/formula first, then substitute carefully.
Common mistakes
- Missing units/state symbols when asked.
- Giving a statement without linking cause → effect.
Exam-style questions (quick)
- Define the key term(s) for this point in the spec.
- Explain a typical property/result using particle/bonding ideas.
- Do a short calculation or interpretation step relevant to this point.
Practice questions
- PMT: Bonding (questions + notes): https://www.physicsandmathstutor.com/chemistry-revision/gcse-aqa/bonding-structure-properties-of-matter/