Matter and Change

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Across
  1. 3. Most are solids at room temperature
  2. 4. A measure of the amount of matter
  3. 7. Not easily reversed
  4. 10. Many are gases, solids are brittle
  5. 13. variable shape,variable volume
  6. 16. Process that releases energy into the surroundings
  7. 17. Separates a solid from the liquid in the heterogenous mixture(by size)
  8. 18. A Substance made up of atoms with the same atomic number
  9. 19. Depends on the type of matter,not the amount present
  10. 20. variable shape,fixed volume
Down
  1. 1. Matter with variable composition, made from 2 or more substances
  2. 2. Anything with mass that occupies space
  3. 5. fixed shape,fixed volume
  4. 6. Matter with constant composition, all particles have the same properties
  5. 8. Depends on the amount of matter in the sample
  6. 9. Can be released and absorbed in a reaction, is not created nor destroyed
  7. 11. Have properties of both metals and nonmetals
  8. 12. A substance that is currently a gas, but normally is a liquid or solid at room temperature
  9. 14. A process that absorbs energy from the surroundings
  10. 15. Substance that is made from atoms of two or more elements that are chemically bonded