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Across
  1. 3. Slows down a reaction
  2. 5. Substance formed in reaction
  3. 6. Matter cannot be created or destroyed
  4. 8. Absorbs heat
  5. 10. Rule based on repeated experiments
  6. 13. Releases heat
  7. 14. Scientific test
  8. 15. Chemical representation of a substance
  9. 18. Element with mixed properties
  10. 19. Testable prediction
  11. 20. Starting material in reaction
  12. 22. Collected information
  13. 23. Element that lacks metallic properties
  14. 24. Well-supported scientific explanation
Down
  1. 1. Symbolic expression of a reaction
  2. 2. Column in periodic table
  3. 4. Unit for counting atoms or molecules
  4. 6. Constant in an experiment
  5. 7. Factor that changes in an experiment
  6. 9. Path of electron around nucleus
  7. 11. Speeds up a reaction
  8. 12. Row in periodic table
  9. 16. Using senses to gather information
  10. 17. Scientist known for gas law constant
  11. 21. Element that conducts electricity