Matter Matters!

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Across
  1. 1. The smallest part of matter
  2. 4. When a liquid changes to a gas
  3. 6. Based on the pull of gravity on an object
  4. 9. A pure material made of only 1 kind of atom
  5. 12. The tool used to measure volume
  6. 14. The amount of matter in an object
  7. 15. This is at the center of every atom
  8. 16. The part of an atom with no charge
  9. 17. Anything that has mass and takes up space
  10. 18. The state that has a definite shape and volume
Down
  1. 2. The tool used to measure mass
  2. 3. The amount of space something takes up
  3. 4. The part of an atom with a - charge
  4. 5. The part of an atom with a + charge
  5. 7. Two or more atoms joined together
  6. 8. Determines whether something will sink or float
  7. 10. The state that takes the shape of its container
  8. 11. Two or more different elements joined together
  9. 12. The state that has no definite shape or volume
  10. 13. When a gas changes to a liquid