Ch 2 & 3 vocab

2. the phase change from a gas to a liquid
4. the phase change in which a substance changes from a liquid into a gas or vapor
6. the state of matter in that has a definite volume but not a definite shape
8. a change that occurs when some properties of a material change, but the substances in the material stay the same
10. the ability to produce a change in the composition of matter
11. a process that separates materials based on the size of their particles
13. the state of matter that has neither a definite shape nor a definite volume
18. the phase change in which a substance changes from a solid directly to a gas without changing to a liquid first
19. a substance that cannot be broken down into simpler substances
22. a substance that is made from two or more simpler substances that are chemically combined in a specific ratio
24. a material’s ability to burn in the presence of oxygen
25. the process that changes a substance from a liquid to a gas at temperatures below the substance’s boiling point
26. a reversible physical change that occurs when a substance changes from one state of matter to another
27. a homogeneous mixture that is transparent and forms when substances dissolve

1. any characteristic of a material that can be observed or measured without changing the composition of the substance
3. change that occurs when a substance reacts and forms one or more new substances
5. the ability of a solid to be flattened without shattering
7. the phase change in which a gas changes directly into a solid without first changing into a liquid
9. a type of mixture in which the parts of the mixture are noticeably different from one another
10. a homogeneous mixture that is opaque
12. a material’s ability to allow heat or electric charges to flow
14. the smallest particle of an element
15. a heterogeneous mixture that separates into layers over time
16. the state of matter that has a definite shape and definite volume
17. matter that always has exactly the same composition; an element or compound
20. a type of mixture in which the substances are evenly distributed and it looks like a single substance
21. a change in which a system absorbs energy from its surroundings
23. a change in which a system releases energy to its surroundings