Chemistry Test 1

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