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Science Lesson 7

Key Terms

QuestionAnswer
Anything that has mass and takes up space Matter
The study of the properties of matter and how matter changes Chemistry
A single kind of matter that is pure and has a specific set of properties Substance
A characteristic of a pure substance that can be observed without changing it into another substance Physical property
A characteristic of a pure substance that describes its ability to change into a different substance Chemical property
A pure substance that cannot be broken down into any other substances by chemical or physical means Element
The basic particle from which all elements are made Atom
A force of attraction between two atoms Chemical bond
Groups of two or more atoms held together by chemical bonds Molecules
A pure substance made of two or more elements chemically combined in a set ratio Compound
Shows the elements in the compound and the ratio of atoms Chemical formula
Two or more substances that are mixed together but are not chemically combined Mixture
A mixture in which pure substances are unevenly distributed throughout the mixture Heterogeneous mixture
A mixture in which subsances are evenly distributed throughout the mixture Homogeneous mixture
An example of a homogeneous mixture; forms when substances dissolve Solution
Two or more substances that are mixed together but are not chemically combined Mixture
A mixture in which pure substances are unevenly distributed throughout the mixture Heterogeneous mixture
A mixture in which subsances are evenly distributed throughout the mixture Homogeneous mixture
An example of a homogeneous mixture; forms when substances dissolve Solution
Created by: littlemike17