Properties of Matter Review

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Across
  1. 3. The liquid substance that is the larger part of a solution (e.g. tea)
  2. 7. Substances are mixed together
  3. 8. The atoms are packed tightly together in this state
  4. 9. This is an example of a mixture
  5. 11. This is an example of a chemical change that occurs when you leave metal objects outside over a long period of time
  6. 13. A combination of two or more substances that can be easily separated (e.g. Trail Mix)
  7. 16. This is an example of a physical change
  8. 19. This type of reaction lets out heat energy
  9. 21. These particles have no charge
  10. 23. Physical changes are usually ________
Down
  1. 1. The atoms expand to fill all the space in the container
  2. 2. This type of reaction takes in heat energy
  3. 4. The process by which water changes to water vapor
  4. 5. A change in size, shape, or state
  5. 6. This is an example of a chemical change that releases heat and light energy
  6. 8. A mixture in which the substances are evenly mixed and not easily separated (e.g. sweet tea)
  7. 10. The atoms are free to move around in this state
  8. 12. The process by which ice changes to water
  9. 14. These particles have a negative charge
  10. 15. One substance is dissolved in the other
  11. 17. This is an example of a solution
  12. 18. The substance that is being dissolved
  13. 20. These changes are usually irreversible
  14. 22. These particles have a positive charge