Junior Secondary School | Science | Free Study Resources

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• Unit 1 Introducing Science

• 01

  Learning about science

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• 02

  Practice of science

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• 03

  Safety in the laboratory

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• 04

  Laboratory equipment and basic practical skills

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• Unit 2 Water

• 01

  The water cycle

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• 02

  Dissolving

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• 03

  Water purification

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• 04

  Further treatment of drinking water

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• 05

  Water conservation and pollution

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• Unit 3 Looking at Living Things

• 01

  Living things

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• 02

  Grouping of living things

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• 03

  Biodiversity

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• Unit 4 Cells, Human Reproduction and Heredity

• 01

  Cells - the basic units of living things

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• 02

  Human reproduction

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• 03

  Heredity and variation

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• Unit 5 Energy

• 01

  Energy changes

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• 02

  Heat transfer

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• 03

  Energy sources

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• Unit 6 Matter as Particles

• 01

  Particle theory

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• 02

  Particle model for the three states of matter

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• 03

  Dissolving

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• 04

  Thermal expansion and contraction

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• 05

  Gas pressure

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• 06

  Density

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• Unit 7 Living Things and Air

• 01

  Air

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• 02

  Photosynthesis

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• 03

  Respiration

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• 04

  Gas exchange in plants and animals

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• 05

  Balance of carbon dioxide and oxygen

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• 06

  Air quality

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• Unit 8 Making Use of Electricity

• 01

  Simple circuit

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• 02

  Current, voltage and resistance

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• 03

  Electrical circuits

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• 04

  Household electricity

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• Unit 9 Common Acids and Alkalis

• 01

  Common acids and alkalis

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• 02

  Measuring pH for acids and alkalis

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• 03

  Neutralisation

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• 04

  Corrosive nature of acids

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• 05

  Potential hazards related to the use of acids and alkalis

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• Unit 10 Sensing the Environment

• 01

  Senses and sense organs

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• 02

  Sight

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• 03

  Hearing

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• 04

  Smell and taste

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• 05

  Other senses

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• Unit 11 Force and Motion

• 01

  Motion

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• 02

  Force

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• 03

  Gravity

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• 04

  Friction and air resistance

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• 05

  Action and reaction

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• 06

  Space flight

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• Unit 12 A Healthy Body

• 01

  Keeping our bodies healthy

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• 02

  Nutrition and health

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• 03

  Health and diseases

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• Unit 13 From Atoms to Materials

• 01

  Atoms and elements

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• 02

  Periodic Table

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• 03

  Mixtures and compounds

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• 04

  Metals

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• 05

  Materials of the modern world

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• Unit 14 Light, Colours and Beyond

• 01

  Light rays from an object

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• 02

  Reflection 

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• 03

  Refraction

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• 04

  Total internal reflection

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• 05

  Images formed by convex lenses

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• 06

  Images formed by concave lenses

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• 07

  Electromagnetic spectrum

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