Year 8 Science

Biology

  • Describe the uses of key components of a balanced diet in our bodies and describe the function of our digestive organs in the break down and absorption of food.
  • Describe the key characteristics of plants including the structure of reproductive organs and seeds.
  • Describe the processes of pollination, fertilisation, dispersal, germination and plant growth including photosynthesis.
  • Describe the processes of aerobic and anaerobic respiration in animals and plants and describe how the human gas exchange system allows us to breathe.
  • Describe how unicellular organisms can be used in food production and decomposition and simply describe how these organisms can have an impact on ecosystems.

Chemistry

  • Describe a range of combustion reactions and the fire triangle.
  • Describe the effects of combustion reactions on our atmosphere and explain the greenhouse effect.
  • Describe the structure / properties of each rock type and how they are formed.
  • Describe the effects of each type of weathering.
  • Explain the advantages of recycling metals.
  • Relate the uses pf different elements to their chemical properties and explain the reactions between metals with oxygen and water.
  • Describe an alloy.

Physics

  • Use the particle model to describe the causes of gas and fluid pressure.
  • Describe how white light can be split into colours and that it can travel in straight lines from a source.
  • Draw diagrams to show how light is affected by different media.
  • Describe the ways in which heat can be transferred and what is meant by power.
  • Compare the heliocentric and geocentric models of the solar system as well as using models to explain the seasons.