Matter & Energy Vocabulary

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Across
  1. 4. describes how something looks, smells or how it changes phase; can be measured
  2. 6. a metric unit that measures energy
  3. 8. the most basic form of matter (there are 118)
  4. 10. changes where nothing new is formed, phase change
  5. 12. liquid to gas phase change
  6. 13. gas to solid phase change
  7. 16. a mixture that is visually indistinguishable
  8. 19. anything that has mass or volume
  9. 20. gas to liquid phase change
  10. 21. liquid to solid phase change
  11. 22. the ability to do work
  12. 23. solid to liquid phase change
  13. 24. an element that always exists as a pair for stability
Down
  1. 1. a measure of the average kinetic energy
  2. 2. two or more elements held together by chemical bonds
  3. 3. a mixture that is visually distinguishable, might have layers
  4. 5. changes where something new is formed, old bonds are broken and new bonds are formed
  5. 7. solid to gas phase change
  6. 9. describes the way a substance reacts or does not react, usually based on the # of valence electrons
  7. 11. two or more substances (elements or compounds) in the same place at the same time
  8. 14. when energy exits the system, energy value is negative
  9. 15. when energy enters the system, energy value is positive
  10. 17. an element that exists as a single atom
  11. 18. type of energy used to hold molecules together