Describing, Classifying, and Measuring Matter

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Across
  1. 1. The basic particle that makes all matter
  2. 3. the measurement of the amount of matter something has
  3. 7. the study of matter
  4. 8. a measure of the mass in a certain volume
  5. 9. the element represented by the symbol "C"
  6. 10. the measurement of the amount of space an object takes up
  7. 11. a substance that cannot be broken down by chemical or physical means
  8. 13. _________ property is a characteristic of a substance to change into different substances
Down
  1. 2. the element represented by the symbol "O"
  2. 3. a group of two or more atoms held together by a bond
  3. 4. a single kind of matter that is pure
  4. 5. the measurement of the force of gravity on an object
  5. 6. _________ property can be observed without changing it into a new substance
  6. 7. a substance made of two or more different elements
  7. 12. anything that has mass and takes up space