Science

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Across
  1. 1. sad
  2. 7. not neat
  3. 9. the study of very small living things such as organisms
  4. 10. a person who works on the heart
  5. 12. the study of animals
  6. 13. the part of the Earth that contains the land, rocks, and minerals
  7. 14. a tool to see tiny things
  8. 15. the study of the environment
  9. 17. the part of the Earth that contains the oceans, rivers, lakes
  10. 19. not equal
  11. 20. the study of the heart
Down
  1. 2. the study of the mind
  2. 3. not sure
  3. 4. not needed
  4. 5. the part of the Earth that contains the air
  5. 6. the part of the Earth that contains all living things
  6. 8. the study of living things
  7. 11. a tool to see things far away
  8. 16. the study of the Earth
  9. 18. a person who works with teeth