18 Week Science Review

2. Anything that has mass and takes up space
5. A mixture that has the same composition throughout because all its parts are mixed evenly
6. The process of turning from a liquid into a vapor (gas)
7. The process through which new substances are formed during a chemical change
10. A characteristic of a substance that can be observed or measured without changing the identity of the substance
11. The state of matter in which a substance has a definite shape and a definite volume
12. The state of matter in which a substance has a definite volume but no definite shape
15. A state of matter in which a substance does not have a definite shape or volume
16. A unit of measure that is found by dividing the mass of an object by its volume
18. To go around, or orbit, another object
19. A group of stars that seems to form a picture or design in the sky
20. Any condition that can be changed in an experiment

1. Change in one or more substances, caused by a reaction, that forms new and different substances
3. The process where water vapor becomes a liquid
4. A law that states that matter cannot be made or destroyed, however, matter can change forms
8. Change in which the form or shape of a substance is altered, but the substance still has the same chemical makeup
9. The measure of the energy of motion of particles of matter, which we feel as how hot or cold something is
13. A combination of two or more different substances in which the substances keep their identities
14. The study of objects in space and their properties
17. The result of the movement of tiny particles in solids,liquids and gases