Physics crossword Puzzle

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Across
  1. 1. second planet from the sun.
  2. 4. attract protons.AKA, the nuclear glue.
  3. 7. a combination of atoms is a _____?
  4. 8. An interstellar cloud of dust and ionized gases.
  5. 9. Largest planet in our solar system.
  6. 12. basic building blocks of everything.
  7. 13. small and massive,no charge.
  8. 16. science is____and scientific theory.
  9. 18. our sun is a common type of_____?
  10. 19. Massive but small,positive charge.
Down
  1. 2. who created E=mc^2
  2. 3. This body is 384,400 Km from Earth.
  3. 5. big and light,negative charge.
  4. 6. Keeps people from falling off of the Earth.
  5. 7. Natural objects glowing as they enter our atmosphere.
  6. 10. My name is_______?
  7. 11. nearest galaxy to ours.
  8. 14. My teacher calls himself__________?
  9. 15. The description of an observed phenomenon.
  10. 17. 1st astronaut to walk on the moon,Neil______.