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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 |