| Term | Definition |
|---|
| matter | anything that takes up space and has mass |
| substance (pure) | a single kind of matter that is 100% the same stuff ( has specific properties) |
| element | a pure substance made of only one kind of atom (see periodic table) |
| atom | smallest particle of an element (basic unit of matter) |
| chemical bond | the FORCE that holds two atoms together |
| chemical formula | way of writing the name of a compound using chemical symbols |
| compound | a pure substance made of two or more elements |
| physical | a property (a quality) of that can be observed WITHOUT changing the basic substance |
| chemical | a property ( a quality) or ability to change into a DIFFERENT substance |
| mixture | two or more substances that are PHYSICALLY not chemically combined |
| heterogenous | mixtures where you can see the different parts |
| homogeneous | mixtures where you CANNOT see the different parts |
| solution | a homogeneous mixture, it looks the same but is physically combined |
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