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Key Stage 3· Years 7–9

KS3 Science

Biology, chemistry and physics — the big ideas behind every GCSE science.

Start with “Cells: the building blocks of life”

You will learn to…

  • Describe animal and plant cells and the job of each part
  • Use the particle model to explain changes of state and diffusion
  • Calculate speed from distance and time
  • Balance simple word equations for chemical reactions
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1

Biology

Cells, organisms and ecosystems.

  1. Cells: the building blocks of lifeAnimal and plant cells, their parts and what each part does.20 min · Y7
  2. PhotosynthesisComing soonHow plants turn light into food.
2

Physics

Forces, speed and energy.

  1. Speed, distance and timeComing soonUse the formula triangle and read distance–time graphs.
  2. Balanced and unbalanced forcesComing soonWhy things speed up, slow down or stay still.