Chemistry Test 1

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