Science Crossword

1234567891011121314
Across
  1. 5. structure inside eukaryotic cells
  2. 6. part of an atom with a negative charge
  3. 9. center of an atom
  4. 10. atom with neutral charge
  5. 13. powerhouse of a cell
Down
  1. 1. natural disaasters before they've happened
  2. 2. atom with positive charge
  3. 3. way plants make their energy
  4. 4. rigid layer outside membrane
  5. 7. plate boundary where one goes under the other
  6. 8. plate boundary where two plates intersect
  7. 11. thin flexible barrier in cells
  8. 12. thing that makes up all mass
  9. 14. makes up all living things