Have a read through my biology pages first. If you still need help, use this page to ask your questions. You could also use this page for a tick list to record what you have learnt and understood and what you need help with. Good luck with your KS3 science studies.

Here is a list of biology topics you should have learnt about since Yr 7:-

The activities of living things = MRS GREN:

  1. Movement
  2. Respiration
  3. Sensitivity
  4. Growth
  5. Reproduction
  6. Excretion
  7. Nutrition

Animal and plant cells:

  1. Animals and plants are made of cells (similarities and differences between these cells)
  2. cells are grouped together into tissues
  3. tissues are grouped together to make organs
  4. chloroplasts and cell walls in plant cells
  5. how different cells are specialised to do different jobs

Human nutrition:

  1. a balanced diet
  2. your intestines
  3. digestion
  4. enzymes
  5. the products of digestion

The human circulatory system:

  1. blood transporting things around your body
  2. capillaries and the exchange of substances with the tissues


  1. the skeleton
  2. muscles (including antagonistic muscles)
  3. joints


  1. adolescence
  2. the human reproductive system (both sexes)
  3. the menstrual cycle
  4. fertilization
  5. development of the embryo
  6. the placenta


  1. the structure of the lung
  2. gaseous exchange
  3. the effects of smoking


  1. aerobic respiration
  2. anaerobic respiration
  3. word equations for respiration


  1. alcohol, solvents and drugs
  2. bacteria and viruses
  3. immunization and medicines
  4. healthy eating

Plant nutrition & growth:

  1. photosynthesis (including a word equation)
  2. The need for Nitrogen, and other elements for growth
  3. root hairs

Plant reproduction:

  1. flowering plants
  2. pollination
  3. seeds & germination

Respiration in plants:

  1. Plants respire aerobically


  1. variation (both genetic and environmental variation)
  2. identifying animals and plants with keys
  3. classifying animals and plants into their major groups
  4. selective breeding

I am sorry that this is such a long list, but you will have been doing science for at least three years when you take your SATs.

Ecology ~ these topics are listed separately.

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