| Term | Definition |
|---|
| the study of matter and its changes | chemistry |
| anything that has mass and takes up space | matter |
| a substance that cannot be broken down into anything simpler | element |
| the smallest unit of matter that has all physical and chemical properties | atom |
| a substance made out of atoms of two or more different elements that are chemically combined | compound* |
| the smallest unit of a substance that has all the chemical and physical properties of that substance | molecule |
| a combination of chemical symbols and numbers to represent a substance | chemical formula |
| matter that has definite chemical and physical properties | pure substance |
| a combination of two or more substances that are not chemically combined | mixture |
| the temperature and pressure at which a solid turns into a liquid | melting point |
| the temperature and pressure at which a liquid turns into a gas | boiling point |
| the ratio of mass to volume | density |
| the ability to combine chemically with another substance | reactivity |
| the ability to react to heat and oxygen | flammability |
| a change of matter that does not change its identity | physical change |
| a change of matter that does change its identity | chemical change |
Combine with other sets
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