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Science Vocab

Physical Science Book, Ch. 2, Section 1

matter anything that has mass and takes up space
chemistry the study of properties of matter and how matter changes
substance a single kind of matter that is pure, meaning it always has the same makeup or composition, and 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 different substances
element a pure substance that cannot be broken down into any other substances by chemical or physical means
atom the basic particle from which all elements are made
chemical bond a force of attraction between two atoms
molecule groups of two or more atoms held together by chemical bonds
compound a pure substance made of two or more elements chemically combined in a set ratio
chemical formula shows the elements in the compound and the ratio of atoms
mixture made of two or more substances; elements, compounds, or both; that are together in the same place but not chemically combined
heterogeneous mixture a mixture where you can see the different parts in it
homogeneous mixture a mixture so evenly mixed, you can't see the different parts
solution an example of a homogeneous mixture (the most universal/basic solution is water)
Created by: Joshuaisawesome