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AQA (KS4)

KS3 & KS4 science curriculum

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Category (KS3)

Exam subject (KS4)

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Science
Year 7

Solutions

11 lessons

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  • BQ06 Chemistry: How do we explain how substances behave?
  • BQ08 Chemistry: How can substances be made and changed?

Description

This unit explores the concepts of pure substances, mixtures, and diffusion in liquids and gases. It emphasises accuracy, precision, and the use of appropriate techniques during investigations. The focus is on making predictions and recording reliable observations.

This unit builds on pupils’ prior learning from Solid, liquid, gas states and changes of state, where they explored how particles behave in different states and change under various conditions. It advances their knowledge by investigating how substances mix to form solutions and the factors that affect solubility. This prepares pupils for the next unit, Separation techniques, where they will apply their understanding of mixtures and solutions to learn how substances can be separated, deepening their grasp of the interactions and properties of materials.

  1. Pure substances
  2. Mixtures: choosing equipment
  3. Mixtures: equipment diagrams
  4. Mixtures and solutions
  5. Diffusion
  6. Dissolving
  7. Variables
  8. Dissolving: scientific methods
  9. Solubility: practical
  10. Solubility: analysis
  11. Saturated solutions

  • Some materials will dissolve in a liquid to form a solution.
  • Dissolving is a reversible change.
  • Changes of state are reversible.
  • Some changes result in the formation of a new substance.
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