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2.1 to 2.2 vocab
Term | Definition |
---|---|
matter | is anything that has a mass and takes up space. |
atom | is a small particle that is the building block of matter. |
substance | is matter with is always the same |
element | is a substance made of only one kind of atoms |
molecules | is two or more atoms that are held together by chemical bonds and act as a unit |
compound | is a substance made of two or more elements that are chemically joined in a scientific combination |
mixture | is matter that can vary in composition |
heterogeneous mixture | is a mixture in which the substances are not evenly mixed |
homogeneous mixture | a mixture in which two or more substances are evenly mixed, but not bonded together |