Quiz 1 Crossword Puzzle Review

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Across
  1. 3. The force of gravity acting on an object's mass
  2. 4. Formed when elements chemically combine
  3. 7. Educated guess
  4. 8. 2 or more pure substances physically mixed together
  5. 10. Anything that has mass and volume (Everything!)
  6. 12. Used to describe a natural phenomenon which has been tested over a long period of time under different conditions
  7. 13. There are 118 of these found on the Periodic Table
Down
  1. 1. A mixture that does have a uniform composition
  2. 2. First element in the periodic table
  3. 5. The amount of matter in an object
  4. 6. The study of matter and the changes it undergoes
  5. 7. A mixture that doesn't have a uniform composition
  6. 9. Anything that can do work or produce heat
  7. 11. A very common compound that is made up of 2 hydrogen atoms and one oxygen atom