chemistry

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Across
  1. 2. The opposite
  2. 3. when ice melts it turns into
  3. 7. lightest state of matter
  4. 8. The same
  5. 9. a distinct feature
  6. 10. how compact
Down
  1. 1. doesn't change color
  2. 4. multiple elements
  3. 5. many atoms
  4. 6. hardest state of matter