Science

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Across
  1. 4. bond together
  2. 7. matter
  3. 8. table: 118 elements
  4. 9. indivisible
Down
  1. 1. h2o
  2. 2. not chemically bonded
  3. 3. together
  4. 5. one type of atom
  5. 6. C
  6. 10. physical substance