Matter and Energy Crossword

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Across
  1. 4. of matter that has particles that are the closest together
  2. 7. form of matter that cannot be broken down further
  3. 9. change from a gas to a liquid
  4. 12. that has mass and takes up space
  5. 13. change from a liquid to a solid
  6. 14. _____ property of something that describes how a substance reacts or fails to react with another chemical
  7. 16. change from a gas to a solid
Down
  1. 1. substance composed of two or more elements chemically bonded
  2. 2. of matter where the particles are the most spread out
  3. 3. change from a solid to a liquid
  4. 5. change from a liquid to a gas
  5. 6. change from a solid to a gas
  6. 8. or more substances mixed in a varied ratio
  7. 10. ______ property of something that describes the physical characteristics
  8. 11. of matter that takes the shape, but not the volume of its container
  9. 15. energy always flows from hot to _____