chemistry

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Across
  1. 2. is the distance an object moves
  2. 3. metals not shiny breaks with ease
  3. 6. is speed plus direction
  4. 7. a push or pull
  5. 8. boundaries when plates crash into each other
  6. 13. when two forces have a different amount of force
  7. 16. positive charge
  8. 17. every action, there is an equal and
  9. 18. is a change in speed direction or both
  10. 19. an object in motion stays in motion
  11. 20. mass x acceleration
Down
  1. 1. negative charge
  2. 4. reaction
  3. 5. electrons determine the reactivity( stability of an element
  4. 9. boundaries when plates past each other
  5. 10. change new substance with new properties
  6. 11. force when two objects have the same force
  7. 12. change size,shape, or a state of matter
  8. 14. neutral charge
  9. 15. boundaries when plates move away from each other
  10. 16. boundaries giant pieces of crust