Chemistry Test 1

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Across
  1. 3. Squashed.
  2. 5. A gas changing directly into a solid.
  3. 6. Solids, liquids and gases are the three ______ of matter.
  4. 8. Removal of heat, changing a gas into a liquid.
  5. 9. Jiggling about on the spot.
  6. 12. Heat changing a liquid into a gas.
  7. 13. Not able to be compressed or squashed.
  8. 14. Anything that has mass and occupies a volume.
  9. 17. Temperature at which a solid melts.
  10. 19. Describe things about the substance like its appearance, melting, freezing and boiling points and its hardness.
Down
  1. 1. Removal of heat, changing a liquid into a solid.
  2. 2. Heat changing a solid into a liquid.
  3. 4. A solid changing directly into a gas.
  4. 7. The model used to help describe and explain the behaviour of particles in solids, liquids and gases.
  5. 10. Bacteria or fungi breaks down the substance into simpler substances.
  6. 11. Temperature at which a liquid boils.
  7. 15. Forces of attraction that hold particles together.
  8. 16. How substances react with other substances.
  9. 18. The incredibly tiny particles that make up all matter.