Matter part 1

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Across
  1. 2. when two or more elements join in a specific ratio
  2. 8. from a liquid to a gas
  3. 12. anything that has mass and takes up space/has volume
  4. 13. a change when no new substance is formed (like when glass breaks)
  5. 15. a substance that cannot be broken down into simpler substances
  6. 17. rigid, fixed volume, cannot be squashed
Down
  1. 1. from a gas to a liquid
  2. 3. the amount of space something takes up
  3. 4. from a solid to a liquid
  4. 5. 2 hydrogen atoms + 1 oxygen atom
  5. 6. from a liquid to a solid
  6. 7. a solid that is melted should weigh the ___ as it did as a solid
  7. 9. the element we are mostly made of
  8. 10. when we physically combine elements or compounds
  9. 11. everything in the universe is made of it
  10. 14. not rigid, no fixed shape or volume, can be squashed
  11. 16. not rigid, no fixed shape, fills shape of container it's in