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Science 6 64

Chapter 1: Section 1 Describing Matter

matter Anything that has mass and takes up space
chemistry The study of the properties of matter and how matter changes
substance A single kind of matter that is pure and has a specific set of properties
physical property A characteristic of a pure substance that can be observed without changing it into another substance
chemical property A characteristic of a pure substance that describes its ability to change into a different substance
element A pure substance that cannot be broken down into other substances by chemical or physical means
atom The basic particle from which all elements are made
chemical bond The force that holds two atoms together
molecule A particle made of two or more atoms bonded together
compound A pure substance made of two or more elements chemically combined
chemical formula A formula that gives the elements in a compound and the ratio of atoms
mixture Two or more substances that are mixed together but not chemically combined
heterogeneous mixture A mixture in which pure substances are unevenly distributed throughout the mixture
homogeneous mixture A mixture in which substances are evenly distributed throughout the mixture
solution An example of a homogeneous mixture--forms when substances dissolve
Created by: sullivan64