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AQA (KS4)

KS3 & KS4 science curriculum

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Science
Year 7

Diffusion

4 lessons

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  • BQ01 Biology: What are living things and what are they made of?

Description

This unit explores diffusion's role in material movement in and between cells and involves making predictions, observations and measurements with various methods.

This unit builds on pupils’ prior learning from Human skeleton and muscles, where they explored the structure and function of body systems. It deepens their understanding by examining diffusion as a key process for transporting substances in and between cells. This prepares pupils for the next unit, Human digestive system, where they will apply their knowledge of diffusion to understand how nutrients are absorbed into the bloodstream, highlighting the importance of these processes in digestion and overall body function.

  1. Diffusion: moving particles
  2. Diffusion through a permeable material: practical
  3. Diffusion through the cell membrane
  4. Diffusion through a selectively-permeable membrane: practical

  • All living organisms are made up of cells.
  • All cells are surrounded by a cell membrane, which controls which substances can move into and out of the cell.
  • The particle model of matter.
  • The properties of the different states of matter (solid, liquid and gas) in terms of the particle model.
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