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5ScienceU2
Matter Unit
| Question | Answer |
|---|---|
| boiling point | the point at which matter changes from a liquid to a gas |
| chemical change | change in a substance caused by a reaction that forms a new substance |
| conservation of matter | a law that states that matter cannot be made or destroyed; just changed into a new form |
| freezing point | the temperature at which matter is changed from a liquid to a solid |
| matter | anything that takes up space |
| melting point | the temperature at which matter changes from a solid to a liquid |
| mixture | a combination of substances in which each substance keeps their identities |
| physical change | a change in which the shape or form of the substance changes, but it still has the same chemical makeup |
| physical properties | anything you can observe about an object by using one or more of your senses |
| solution | a mixture that has the same composition throughout because all its parts are mixed evenly |
| As matter is added to an object, | its weight increases |
| Gases | does not take up a definite amount of space or shape |
| Liquids | takes up a definite amount of space, but not shape |
| Solids | has a definite shape and volume |