Science

3. the smallest particle of an element
9. a process that separates the substances in a solution based on their boiling points
11. change that occurs when a substance reacts and forms one or more new substances
13. a type of mixture in which the parts of the mixture are noticeably different from one another
17. Change a change that occurs when some properties of a material change, but the substances in the material stay the same
18. any characteristic of a material that can be observed or measured without changing the composition of the substances in the material
19. a material’s ability to allow heat or electric charges to flow
20. a mixture that contains some particles that are intermediate in size between the small particles in a solution and the larger particles in a suspension
21. Point the temperature at which a substance boils
22. a process that separates materials based on the size of their particles

1. matter that always has exactly the same composition an element or compound fits into this category
2. a material’s ability to burn in the presence of oxygen
4. the ability of a solid to be hammered without shattering
5. a type of mixture in which the substances are so evenly distributed that it is difficult to distinguish one substance in the mixture from another
6. a heterogeneous mixture that separates into layers over time
7. a substance that cannot be broken down into simpler substances
8. a substance that is made from two or more simpler substances and can be broken down into those simpler substances
10. the property that describes how readily a substance combines chemically with other substances
12. property any property that produces a change in the composition of matter
14. Point the temperature at which a substance changes from solid to liquid
15. a mixture that forms when substances dissolve and form a homogeneous mixture
16. the tendency of a liquid to keep from flowing; a resistance to flowing