Science Review Puzzle

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Across
  1. 2. the amount of matter in an object
  2. 6. the ability of a substance to react with fire
  3. 8. matter that does not have a definite shape, but does have definite volume
  4. 10. a mixture that is the same throughout
  5. 12. the component of an atom that does not contain a charge or is neutral
  6. 13. a property or characteristic of an item to react with another substance
  7. 14. matter that does not have definite shape and does not have definite volume
  8. 15. a tiny particle that makes up all matter
  9. 16. anything that has mass and takes up space
Down
  1. 1. a property of a substance that can be observed or measured without changing the substance
  2. 3. a mixture where the items mixed retain their chemical properties
  3. 4. the amount of space an object occupies
  4. 5. a negatively charged component of an atom
  5. 7. a positively charged component of an atom
  6. 8. the state or quality of shine of an object
  7. 9. matter with a definite shape and a definite volume
  8. 11. the measure of how compact the mass of an object is within a defined space