Properties of state and matter

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Across
  1. 2. compounds have (______) properties than the elements that make up.
  2. 6. when a liquid (), it changes to a gas rapidly.
  3. 8. mass is often measured in what?
  4. 9. An (_____) is the smallest unit of an element that retains the properties of the element
  5. 10. liquid in a() expands or contracts with changes in temperature.
  6. 13. materials () as they get hotter.
  7. 16. petroleum is a complex mixture of (_______).
  8. 17. A measure of the amount of matter in an object is what?
  9. 18. (________) comes from petroleum.
  10. 19. materials ()as the get cooler.
Down
  1. 1. the groups in Mendeleyev's table after the periodic changes found in the elements' ()
  2. 3. the melting point is also called the () point.
  3. 4. the basic building blocks of all matter are what?
  4. 5. A measure of how much space a sample of matter takes up is what?
  5. 7. when heat is absorbed by a solid, the molecules vibrate ().
  6. 9. materials with very low density and relatively great strength,called (),are very good insulator against heat is what?
  7. 11. particals that contain more than one atom joined together are called()
  8. 12. when a liquid (), it gradually changes to a gas.
  9. 14. adding or removing (____)makes substances change from one state to another.
  10. 15. the (_____) of an object is a measure of the force of gravity between earth and the object is what?