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Science Vocab
| Term | Definition |
|---|---|
| Weight | a measure of the force of gravity on an object |
| Mass | the amount of matter in an object |
| International System of Units | a system for how to measure mass |
| Volume | the amount of space that matter occupies |
| Density | measure of mass of a material in a given volume |
| Matter | anything that has mass and takes up space |
| Chemistry | the study of matter and how matter changes |
| Substance | a single kind of matter that is pure |
| Physical Property | a characteristic of a substance that can be observed without changing into another sustance |
| Chemical Property | a characteristic of a substance that describes its ability to change into different substances |
| Element | a substance that can't be broken down into any other substance by chemical or physical means |
| Atom | the basic particle from which elements or made |
| Chemical Bond | a force of attraction between two atoms |
| Molecule | a group of two or more atoms held by a chemical bond |
| Compound | a substance made of two or more elements |
| Chemical Formula | formula that shows the elements in a compound |
| Mixture | made of two or more substances that are together in the same place but aren't chemically bonded |