Energy - Matter

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Across
  1. 5. a process used to separate substances based on differences in boiling points
  2. 9. force the force of attraction between objects with mass
  3. 14. water in its gaseous state
  4. 16. forces forces that act on objects without touching them
  5. 17. point the temperature at which a solid changes into a liquid
  6. 18. the tiny particles that make up all matter
  7. 19. forces forces between electrically charged objects
  8. 20. forces forces that are not equal and cause a change in motion
  9. 21. the amount of matter in an object
Down
  1. 1. change a change that forms one or more new substances
  2. 2. change a change in size, shape, or state that does not form a new substance
  3. 3. the size or strength of a force
  4. 4. a force that opposes motion between two surfaces in contact
  5. 6. forces forces that are equal and opposite, causing no change in motion
  6. 7. the amount of space an object occupies
  7. 8. point the temperature at which a liquid changes into a solid
  8. 10. mixture a mixture in which the substances are evenly mixed throughout
  9. 11. a push or pull that can change the motion of an object
  10. 12. force a force that acts when objects touch each other
  11. 13. mixture a mixture in which the substances are not evenly mixed
  12. 15. the tendency of an object to resist changes in its motion
  13. 18. force a force exerted on an object by a person or another object