Lydia's masterpiece

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Across
  1. 3. what measures mass
  2. 8. made up of molecules that have different kinds of atoms
  3. 9. the building blocks of all matter
  4. 10. as materials get hotter they what
  5. 11. fills up its container
  6. 12. anything that has mass and takes up space how many elements are there
  7. 13. a measure of the amount of matter in an object
  8. 15. a formula that contains numbers below the elements
  9. 17. takes the shape of the container
  10. 18. a measure of the amount of space an object takes up
  11. 19. the melting point is also called
Down
  1. 1. the liquid in a what expands or contracts with changes in tempature
  2. 2. when heat is absorbed by a solid the molecules move
  3. 4. as matrials get cooler they what
  4. 5. an objects ability to float
  5. 6. scientests use this to mesure force
  6. 7. the tiny very dense body in the atoms center is called the atomic what
  7. 12. particles that contain two or more atoms
  8. 14. solids keep their what
  9. 16. the three states of matter