Structure of Matter

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Across
  1. 3. form of matter that has no definite shape or volume
  2. 5. form of matter that has a definite volume but no definite shape
  3. 7. anything that has mass and takes up space
  4. 8. a form of matter that has a definite shape and volume
  5. 9. the form that matter has
Down
  1. 1. the smallest particles of a substance that still have the properties of that substance
  2. 2. a characteristic that helps identify an object
  3. 4. a building block of matter and an individual part of a molecule
  4. 6. the amount of matter per unit volume