Physical and Chemical Changes

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Across
  1. 3. has a definite shape and a definite volume
  2. 4. SI units use this form of measurement
  3. 7. this can be used to measure the volume of a substance
  4. 11. another word for evaporation
  5. 13. mass divided by volume
  6. 14. these types of reactions require (absorb) energy
  7. 15. the amount of space something takes up
  8. 18. a change from solid to gas
  9. 20. has indefinite shape and indefinite volume
  10. 21. these types of reactions release energy
  11. 25. 2 or more atoms chemically combined
  12. 26. a change from liquid to gas
  13. 28. rusting is an example of this
  14. 29. properties observed during a reaction where a new substance is formed
  15. 30. this can be observed without changing the identity of a substance
Down
  1. 1. procedure used to determine the volume of an irregularly shaped object
  2. 2. another way to describe a state of matter
  3. 5. physical properties that depend on the type of matter, not the amount
  4. 6. when using a graduated cylinder, you measure to the bottom of this
  5. 8. a change from gas to solid
  6. 9. physical properties that depend on the amount of matter, not the type
  7. 10. a change from gas to liquid
  8. 12. this can be used to find the mass of a substance
  9. 16. has indefinite shape but definite volume
  10. 17. the most abundant state of matter in the universe
  11. 19. a change from liquid to solid
  12. 22. a change from solid to liquid
  13. 23. this common substance expands as it freezes
  14. 24. 2 different elements that are chemically bonded
  15. 27. a phase change is an example of this