Science crossword

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Across
  1. 4. is a small particle that is a building block of matter
  2. 5. matter has this many parts?
  3. 6. this dioxide is a compound composed of carbon and oxygen
  4. 9. This element has 8 protons
  5. 10. is a substance that consists of just one type of atom
  6. 12. Each element is a certain number of atoms what number is it
  7. 17. all non-solvents in a solution are?
  8. 19. atoms determine the what of matter
  9. 20. is a type of substance containing atoms of two or more different elements chemically bonded together
  10. 21. one of the two classifications of matter and it ryhmes with fixtures
Down
  1. 1. an atom is compared to a strand of what?
  2. 2. this mixture happens when you get everything evenly mixed
  3. 3. this mixture happens when you mess up your proportions
  4. 7. this atom has a positive charge
  5. 8. is at the center of an atom
  6. 11. An atom has what moving in an area outside of it
  7. 13. most elements are this
  8. 14. is something that has mass and takes up space
  9. 15. oxygen is a what that cause feuls to burn?
  10. 16. is a matter with a composition that is always the same
  11. 18. this is when you form something by being proportiant
  12. 22. In a solution, the substance present in the latest amount is?