KS3 Science

Keystage 3 – Science

Curriculum Overview

Combined Sciences gives students the opportunity to study biology, chemistry and physics, each covered in separate syllabus sections. Students learn about the basic principles of each subject through a mix of theoretical and practical studies, while also developing an understanding of the scientific skills essential for further study.

Topics to be covered


  • Characteristics of living organisms
    • Cells
    • Cell structure and organisation
  • Movement in and out of cells
  • Enzymes
  • Nutrition
    • Nutrients
    • Plant nutrition
    • Animal nutrition


  • The particulate nature of matter
  • Experimental techniques
    • Methods of separation and purification
  • Atoms, elements and compounds
    • Physical and chemical changes
    • Elements, compounds and mixtures
    • Atomic structure and the Periodic Table
    • Ions and ionic bonds
    • Molecules and covalent bonds


  • Motion
  • Matter and forces
    • Mass and weight
    • Density
    • Effects of forces
  • Energy, work and power
    • Energy
    • Energy resources
    • Work
    • Power
  • Simple kinetic molecular model of matter
    • States of matter
    • Molecular model
    • Evaporation


Continuous assessments will be given throughout key stage 3. At the end of each topic, students will be assessed on four skills- knowledge, understanding, analysis and evaluation.  In class assessments at the end of each topic will be marked to the National Curriculum levels 1c to 8a.

Further Information

For more information regarding this course please speak to Dr Beulah.