Physical Science Crossword

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Across
  1. 2. Mass/Volume
  2. 4. Sun
  3. 6. Negative
  4. 7. Nuclear
  5. 8. burning
  6. 10. melting
  7. 12. Joining
  8. 13. Neutral
  9. 15. Iron
  10. 16. Metal/Nonmetal
  11. 18. Touch
Down
  1. 1. Splitting
  2. 3. Oxygen
  3. 5. Thermal
  4. 8. Liquid
  5. 9. Arsenic
  6. 11. smallest
  7. 14. Positive
  8. 17. reflects light
  9. 18. Nonmetal/Nonmetal