Chapter 1: Matter

2. A solid in which the atoms are arranged in a pattern that repeats again and again.
4. A solid or liquid mixture of two or more metals.
7. Zero on the Kelvin temperature scale; the coldest possible temperature.
10. A change that occurs when one or more substances change into entirely new substances with different properties.
11. A mixture that is uniform in composition; components are evenly distributed and not easily distinguished.
14. A state of matter with no definite shape or volume.
16. A change from one state (solid or liquid or gas) to another without a change in chemical composition.
20. A homogeneous mixture of two or more substances.
21. A combination of two or more substances that are not chemical combinations.

1. A fourth state of matter distinct from solid or liquid or gas and present in stars and fusion reactors.
3. Substance formed by the chemical combination of two or more elements in definite proportions.
5. A pure substance made of only one kind of atom.
6. A mixture that is not uniform in composition; components are not evenly distributed throughout the mixture.
8. The process of changing from a gaseous to a liquid or solid state.
9. The change of a substance from a shape or volume.
12. That which has mass and occupies space.
13. The ability of one substance to dissolve in another at a given temperature and pressure.
15. Substance in which a state is dissolved to form a solution.
17. A substance in the fluid state of matter having no fixed shape but a fixed volume.
18. A form of matter that has a definite shape and volume.
19. Substance that is dissolved.