Words around the lab

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Across
  1. 2. oxygen
  2. 5. lightenergy
  3. 7. organelles
  4. 8. heredity
  5. 11. looking
  6. 13. environment
  7. 14. force/pull
  8. 15. protons
Down
  1. 1. numbers
  2. 3. naturalselection
  3. 4. matter
  4. 6. living
  5. 9. reactions
  6. 10. testing
  7. 12. alani