AC9S7U05 • Year 7 Science

Particle Theory, States of Matter & Diffusion (AC9S7U05)

Use particle arrangement, motion, energy and attraction to explain solids, liquids and gases, changes of state, density, compressibility and diffusion.

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  • Topic guide: focused teaching across E1–E7 with worked reasoning and common misconceptions.
  • Homework: 5 × 2-mark + 5 × 5-mark + enrichment, with marking guidance.
  • Practice: 40 curated questions for confidence and application.
  • Test: 30 separate unseen questions for independent transfer.