Properties of state and matter

2. (________) comes from petroleum.
5. liquid in a() expands or contracts with changes in temperature.
7. the groups in Mendeleyev's table after the periodic changes found in the elements' ()
9. materials () as they get hotter.
11. compounds have (______) properties than the elements that make up.
13. adding or removing (____)makes substances change from one state to another.
14. mass is often measured in what?
17. petroleum is a complex mixture of (_______).
18. A measure of the amount of matter in an object is what?
19. A measure of how much space a sample of matter takes up is what?

1. particals that contain more than one atom joined together are called()
3. the melting point is also called the () point.
4. An (_____) is the smallest unit of an element that retains the properties of the element
6. the basic building blocks of all matter are what?
8. materials ()as the get cooler.
10. the (_____) of an object is a measure of the force of gravity between earth and the object is what?
12. when heat is absorbed by a solid, the molecules vibrate ().
15. materials with very low density and relatively great strength,called (),are very good insulator against heat is what?
16. when a liquid (), it changes to a gas rapidly.