iStarSign in

Science 8

Cambridge Lower Secondary Science Stage 8

Grade 7 · 9 units · 44 sections · 796 questions

Free to try, no sign-in. Sign in to earn ⭐ stars and keep your progress.

Unit 1: Respiration →

  1. 1.1The human respiratory systeme.g. What is the larynx? · 16 questionsPractice
  2. 1.2Gas exchangee.g. Why do air sacs have very thin walls? · 17 questionsPractice
  3. 1.3Breathinge.g. What happens when you breathe out? · 20 questionsPractice
  4. 1.4Respiratione.g. What is yeast? · 17 questionsPractice
  5. 1.5Bloode.g. What does plasma transport? · 20 questionsPractice

Unit 2: Properties of materials →

  1. 2.1Dissolvinge.g. What is a solute? · 17 questionsPractice
  2. 2.2Solutions and solubilitye.g. What is solubility? · 21 questionsPractice
  3. 2.3Planning a solubility investigatione.g. What is a line of best fit? · 17 questionsPractice
  4. 2.4Paper chromatographye.g. What is paper chromatography used for? · 17 questionsPractice

Unit 3: Forces and energy →

  1. 3.1Forces and motione.g. What is needed for two forces to be balanced? · 18 questionsPractice
  2. 3.2Speede.g. What does 60 km/h mean? · 22 questionsPractice
  3. 3.3Describing movemente.g. What does a straight line sloping upwards show? · 17 questionsPractice
  4. 3.4Turning forcese.g. What is the unit of a moment? · 18 questionsPractice
  5. 3.5Pressure between solidse.g. What is the equation for pressure? · 19 questionsPractice
  6. 3.6Pressure in liquids and gasese.g. Where is air pressure largest? · 17 questionsPractice
  7. 3.7Particles on the movee.g. What is diffusion? · 17 questionsPractice

Unit 4: Ecosystems →

  1. 4.1The Sonoran Deserte.g. What is a habitat? · 18 questionsPractice
  2. 4.2Different ecosystemse.g. What are decomposers? · 19 questionsPractice
  3. 4.3Intruders in an ecosysteme.g. What is a herbivore? · 19 questionsPractice
  4. 4.4Bioaccumulatione.g. What are microplastics? · 20 questionsPractice

Unit 5: Materials and cycles on Earth →

  1. 5.1The structure of the atome.g. Where are electrons found? · 17 questionsPractice
  2. 5.2Puritye.g. What is a pure element? · 18 questionsPractice
  3. 5.3Weather and climatee.g. What is humidity? · 20 questionsPractice
  4. 5.4Climate and ice agese.g. What is a glacial period? · 17 questionsPractice
  5. 5.5Atmosphere and climatee.g. How did the oceans form? · 21 questionsPractice

Unit 6: Light →

  1. 6.1Reflectione.g. What is the law of reflection? · 15 questionsPractice
  2. 6.2Refractione.g. What causes refraction? · 18 questionsPractice
  3. 6.3Making rainbowse.g. How do the colours appear on a white screen? · 17 questionsPractice
  4. 6.4Colours of lighte.g. What are primary colours of light? · 20 questionsPractice
  5. 6.5Galaxiese.g. What is a galaxy? · 18 questionsPractice
  6. 6.6Rocks in spacee.g. Where is the asteroid belt? · 18 questionsPractice

Unit 7: Diet and growth →

  1. 7.1Nutrientse.g. What is the main function of protein? · 21 questionsPractice
  2. 7.2A balanced diete.g. Why do we need fibre in our diet? · 19 questionsPractice
  3. 7.3Growth, development and healthe.g. Which substance in cigarettes makes smoking addictive? · 18 questionsPractice
  4. 7.4Moving the bodye.g. What type of joint is the knee? · 18 questionsPractice

Unit 8: Chemical reactions →

  1. 8.1Exothermic reactionse.g. Name two control variables in that investigation. · 18 questionsPractice
  2. 8.2Endothermic reactionse.g. Why use insulated cups to investigate temperature changes? · 20 questionsPractice
  3. 8.3Reactions of metals with oxygene.g. What is the chemical name for rust? · 17 questionsPractice
  4. 8.4Reactions of metals with watere.g. What is the word equation for calcium and water? · 17 questionsPractice
  5. 8.5Reactions of metals with dilute acidse.g. How can you tell which metal is more reactive? · 17 questionsPractice

Unit 9: Magnetism →

  1. 9.1Magnetic fieldse.g. What is a magnetic field? · 15 questionsPractice
  2. 9.2The Earth as a giant magnete.g. Where does the Earth's magnetic field occur? · 18 questionsPractice
  3. 9.3Electromagnetse.g. Which metals could be magnetised as a core? · 16 questionsPractice
  4. 9.4Investigating electromagnetse.g. What does this tell you about the electromagnet? · 17 questionsPractice