Science

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Across
  1. 4. changing into vapor
  2. 6. without a backbone
  3. 8. center of an atom
  4. 10. basic unit of life
  5. 12. Process of water falling from clouds
  6. 14. used to look at tiny objects
  7. 16. that pulls objects downward
  8. 17. process plants use to make food
Down
  1. 1. Group of stars forming a pattern
  2. 2. Animals that eat only plants
  3. 3. the red planet
  4. 5. Change from liquid to solid
  5. 7. rock melted beneath Earth’s surface
  6. 9. star in our solar system
  7. 11. planet we live on
  8. 13. Energy from moving electrons
  9. 15. gas humans breathe in