Chemical and Physical Changes

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Across
  1. 3. what we use to represent chemical reactions
  2. 6. molecules move freely
  3. 8. when a liquid changes to a solid
  4. 10. what the reaction ends with
  5. 12. matter changes, but no new substance is formed
  6. 14. What a reaction starts with
  7. 16. the number in front of chemical formulas to tell how many molecules there are
  8. 17. when a gas changes to a liquid
  9. 18. has mass and takes up space
  10. 19. type of reaction that absorbs energy from its surroundings
  11. 22. type of reaction that releases energy to its surroundings
  12. 23. matter changes so that a new substance is formed
Down
  1. 1. what is added to make state of matter change
  2. 2. anything that describes an item
  3. 4. matter cannot be created or destroyed, it can change forms
  4. 5. molecules are fluid
  5. 7. the small number to tell how many specific atoms are in a molecule
  6. 9. when a solid goes to a gas
  7. 11. molecules are tightly packed together
  8. 13. when a liquid changes to a gas
  9. 15. when a solid changes to a liquid
  10. 20. anything that proves a change has happened
  11. 21. when a gas changes to a solid