Matter

2. have definite shapes and volumes
4. a mixture in which two or more substances are uniformly spread out and the different materials can not be easily distinguished (water or milk)
5. is the amount of matter in an object
9. a chemical reaction that absorbs energy in the form of heat
13. a mixture in which the different materials can easily be distinguished (chicken noodle soup)
14. a material that is made up of two or more substances
16. All units that make up all matter are called atoms (periodic table)
17. a change in a substance that does not change what the substance is (phase changes)
18. a characteristic of a substance that can be observed without changing the substance into another substance (mass, volume, color)
20. a change in which a substance is changed into a different substance (reactions)

1. have definite volume but not definite shape- they assume the shape of the container
2. the different types of matter (solid, liquid, gas)
3. They do not have their own shape or volume, but assume the shape and the volume of the container
6. a chemical reaction that releases energy in the form of heat
7. properties are not dependent upon how much material is present (density, odor, and color)
8. material made of two or more elements combined
10. anything that occupies the space and has a mass
11. a characteristic of a substance that can only be observed by changing it into a different substance (rusting, tarnish, burning)
12. Matter that is either an element or a compound
15. properties do depend on the size of a sample (mass & volume)
19. a homogeneous mixture