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Stack #4706471
| Question | Answer |
|---|---|
| matter | anything w/ mass & volume (takes up space) |
| examples of matter | pencil, backpack |
| substance | matter w/ uniform composition throughout, unchanging |
| examples of substance | salt, pure water |
| All substances are matter, but not all matter is a pure substance | true |
| properties of solid | definite shape, volume, packed molecules |
| properties of liquid | definite volume, conforms to container's shape, loose molecules |
| properties of gas | no definite shape, volume, fills entire container, far apart particles |
| properties of plasma | made of charged particles |
| how does plasma form | gas particles ionize & break apart into charged particles |
| examples of plasma | lightning, sun, neon signs |