Matter

12345678910111213141516
Across
  1. 2. not able to see different materials
  2. 6. pure substance
  3. 9. same as an electron cloud
  4. 11. water is an example
  5. 13. unit to measure liquid
  6. 14. center of an atom
  7. 15. no charge
  8. 16. table grouping of elements
Down
  1. 1. positive charge
  2. 3. vapor state
  3. 4. hard object
  4. 5. able to see different materials
  5. 7. water moved after adding an object
  6. 8. unit of weight measurement
  7. 10. negative charge
  8. 12. aqueous fluid