Science Crossword

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Across
  1. 3. what sphere is frozen liquids?
  2. 4. What is it called when water falls from the sky?
  3. 7. What contains all of Earth's elements?
  4. 11. ___ are the building blocks of everything.
  5. 12. What group of elements are all happy?
  6. 15. what goes left and right on the periodic table?
  7. 17. what sphere is the ground?
  8. 19. How many electrons can fit in an atoms second level?
Down
  1. 1. What's the center of an atom called?
  2. 2. what sphere are liquids in?
  3. 4. How do plants get food?
  4. 5. What charge do neutrons have?
  5. 6. Fossil Fuels contain what?
  6. 8. What is CO2's full name?
  7. 9. what sphere is the air?
  8. 10. What is the smallest part of an atom?
  9. 13. All of the ____ contain carbon.
  10. 14. what goes up and down on the periodic table?
  11. 16. whats on the periodic table?
  12. 18. What has a positive charge in atoms?