Science Puzzle #1

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Across
  1. 2. A combination of elements
  2. 4. Medicine maker
  3. 6. Temperature at which water vapor condenses on leaves
  4. 8. The father of paleontology
  5. 10. The study of fossils
  6. 11. An educated guess
  7. 12. Destruction of protein shapes due to heat treatment
Down
  1. 1. Colorful light show in the night sky caused by magnetic storms
  2. 3. These animals have backbones
  3. 5. No living members of a species remains
  4. 7. Speeds up reactions
  5. 9. Something that cannot be chemically broken down any further