Science

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Across
  1. 2. big number
  2. 3. ice pack
  3. 7. compound
  4. 13. scientific support
  5. 14. new substance made
  6. 15. hydrogen
  7. 16. group of atoms
  8. 17. mass can't be destroyed
Down
  1. 1. reaction arrow
  2. 4. energy heat pack
  3. 5. bending paper
  4. 6. protons
  5. 8. solid chunks formed in liquid
  6. 9. formed after reaction
  7. 10. reactants are converted to one or more different substances
  8. 11. mathematical formula in science
  9. 12. small number