Chemical World

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Across
  1. 4. the amount of matter in an object
  2. 6. get bigger, increase in size
  3. 8. changing from a liquid to a gas
  4. 11. get smaller, shrink
  5. 13. model a model used to describe the properties of solids, liquids, and gases
  6. 15. model an idea used to explain and predict occurrences that we can't directly interact with
  7. 16. a factor that limits or restricts
  8. 19. an observed event
  9. 20. point the temperature when something changes from a solid to a liquid
Down
  1. 1. point the temperature when something changes from a liquid to a gas
  2. 2. particles that make up all physical substances; they have mass and take up space
  3. 3. how heavy something is for its size; mass divided by volume
  4. 5. a very small amount of matter
  5. 7. a characteristic or attribute of a substance
  6. 9. very close to the true, exact value
  7. 10. the space taken up by something
  8. 12. squash into a smaller space
  9. 14. a machine that spins fluid samples very quickly so that they separate into parts of different densities
  10. 17. relating to heat
  11. 18. changing from a gas to a liquid