Chapter 3

4. a physical separation technique that is based on differences in the boiling points of substances involved
6. the gaseous state of a substance that is a solid or a liquid at room temperature
8. a mixture that does not blend smoothly throughout and in which the individual substances remain distinct
9. a form of matter that not only flows to conform to the shape of it's container but also fills the entire volume
13. a change without changing a substances composition
14. the process during which a solid changes to vapor without melting
15. combination of two or more pure substances
16. all matter that exists naturally on earth
19. orderly, direct information gathering about a phenomenon

1. states that mass is neither created nor destroyed during a chemical change
2. a mixture that has constant composition throughout; it always has a single phase
3. a separation technique that results in the formation of pure solids particles of a substance from a solution containing the dissolved substance
5. a transition of matter from one state to another
7. a technique that uses a porous barrier to separate a solid from a liquid
10. a characteristic of matter that can be observed or measured without changing the samples composition
11. a process that involves one or more substances changing into new substances
12. a form of matter that flows, has constant volume, and takes the shape of it's container
17. something homogenous mixtures are also referred to as
18. a form of matter that has it's own definite shape and volume