Science Crossword

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Across
  1. 3. 2nd largest planet in our solar system
  2. 4. 2 words no space, liquid layer of the earth
  3. 6. earliest form of human being
  4. 8. the center of our solar system
  5. 12. not all rocks are----,but all---- are rocks
  6. 13. the top layer of our planet, rigid
  7. 15. closest planet to the sun
  8. 16. the center of our planet
  9. 17. longest era and is also a period in the time line of earth's history
  10. 19. rocks sometimes fizz because of this, 2 words no space
  11. 21. rock compacted and cemented
  12. 23. we live on it
  13. 24. last true planet in our solar system
  14. 25. dwarf planet, not really a planet
  15. 26. 4th closest planet to the sun
Down
  1. 1. 2nd closest planet to the sun
  2. 2. 2 words, no space, a organism that only lived for a short time and in many different places
  3. 5. the remain or trace of an organism left inbedded in the earth's crust
  4. 7. 3 words, no space, the largest tectonic plate
  5. 9. 4 words, no space, the smallest tectonic plate
  6. 10. the plates that move the surface of the earth(2 words, no space)
  7. 11. largest planet in our solar system
  8. 12. rock formed from heat and/or pressure
  9. 14. largest canyon formation in the world
  10. 18. layer of the earth that is half solid, half liquid
  11. 20. planet after Saturn
  12. 22. rock formed from cooling molten rock