density

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Across
  1. 2. an item
  2. 3. falls beneath a surface
  3. 5. drifts on a surface
  4. 7. how heavy an object is (due to the pull of gravity)
  5. 10. a gas that you can’t see
  6. 12. anything that has weight and takes up space
  7. 13. a stable, definite shape and a definite volume measure of the space a solid, liquid, or gas takes up
Down
  1. 1. how tightly packed matter is in an object
  2. 4. substance that can be poured
  3. 6. weighs very little; easy to move
  4. 7. a liquid that you drink
  5. 8. weighs lots; difficult or hard to move
  6. 9. special materials found
  7. 11. how much matter is in an object