Science Crossword

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Across
  1. 3. Number of cubic centimetres of space object occupies
  2. 4. Gas first discovered in the sun
  3. 6. The smallest particle of a chemical element.
  4. 8. Force of gravity
  5. 10. Where most of the matter is in an atom
  6. 11. Where there's no air
  7. 14. Where gravity is about 2.5 times that of Earth
  8. 16. The hardest mineral
  9. 17. Least dense state of matter
  10. 19. Positively charged particle in the atomic nucleus
  11. 21. A medium-sized flatfish
  12. 24. The lightest element
  13. 25. Smallest member of the squirrel family
  14. 27. Solved the mystery of the king's crown
  15. 30. Tree rat
  16. 32. Rectangular solid with six square faces
  17. 33. Soft allotrope of carbon. Used in pencil leads.
  18. 34. Water is an example of this state of matter.
  19. 35. Densest state of matter
Down
  1. 1. What the king's crown wasn't actually made of
  2. 2. Mass divided by volume
  3. 5. Where gravity is 1/6th that of Earth
  4. 7. Amount of matter in an object
  5. 9. Negatively charged particle on the outside of an atom
  6. 12. Flow of charges through a conductor
  7. 13. There is no ____________ - Earth sucks!
  8. 15. Sticks to fridge
  9. 18. Hexagonal ice crystal
  10. 20. Adorable nocturnal rodent with bushy tail
  11. 22. Our home
  12. 23. Unit of mass
  13. 26. Starts Friday!
  14. 28. Unit of solid volume
  15. 29. Unit of liquid volume
  16. 31. Squirrel minus its tail fur
  17. 32. The element we're mostly made of