Matter

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Across
  1. 3. The opposite site of shiny.
  2. 8. Are not good conductors of electricity.
  3. 9. smallest particle of an element
  4. 11. Another word for shinny.
  5. 12. pure substance
  6. 13. This element is known as Hs.
  7. 15. a measure of how much matter is present in a substance
  8. 16. We need it to breathe.(element)
Down
  1. 1. The first element
  2. 2. Means to break apart easily.
  3. 4. The 16th element on the periodic table.
  4. 5. This compound has 2 hydrogen and one oxygen
  5. 6. When you can flatten an element into a sheet it is considered what?
  6. 7. Have properties of both metals and non-metals
  7. 10. The largest group on the Periodic Table of Elements is called.
  8. 14. the layers of gas surrounding a planet that is held in place by gravity.