matter

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Across
  1. 3. multiple substances mixed together
  2. 4. made up of atoms
  3. 5. a change you can get back
  4. 7. positive charge
  5. 10. a change you can not get back
  6. 11. nonmoving molecules
Down
  1. 1. smallest unit of life
  2. 2. neutral
  3. 4. anything that takes up space
  4. 6. negative charge
  5. 8. slow-moving molecules
  6. 9. fast-moving molecules