Year 8 Chemistry Review

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Across
  1. 1. Particles need to do this to react
  2. 4. These are broken during a chemical reaction
  3. 5. We can increase this by making particles smaller
  4. 6. When a gas becomes a solid
  5. 9. A change in shape,form or appearance
  6. 13. When a liquid becomes a gas
  7. 14. The amount of a particular substance in a given volume
  8. 16. Substance made up of 2 or more different types of atoms
  9. 18. A substance that will increase the rate of chemical reaction without affecting the products
  10. 19. Energy of motion
  11. 20. The substances that we start with in a chemical reaction
  12. 21. The substances that we make in a chemical reaction
  13. 23. A pure substance made of one type of atom
Down
  1. 2. An example of a biological catalyst
  2. 3. The substance being dissolved
  3. 7. The liquid that the solute is being dissolved in
  4. 8. When a solid becomes a liquid
  5. 10. Increasing this will increase the rate of reaction
  6. 11. A substance where the particles are far apart and move quickly on their own
  7. 12. A substance with particles that are close together but can move and slide over each other
  8. 15. A change that produces a new substance
  9. 17. Anything that has mass and volume
  10. 22. A substance with particles that are close together in a fixed position