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Science unit 3
test on 11/22/13
Question | Answer |
---|---|
matter | anything that has mass that takes up sapce |
mass | a measure of how much matter an object contains |
weight | the downward pull on a object due to the force of gravity |
volume | the ammount of space in an object |
attom | the smallest basic unit of matter |
molecule | when two or more atoms combine they make a moloecule |
element | a substance that contains only a single atom |
compound | a substance of two or more diffrnet kindws of atoms |
mixture | a combination of diffremnt substences that remian the smae indidiual substences |
states of matter | doffrent forms in wich matter can exist |
solid | a substance that has a fixed volume but not a fixed shape |
liquid | fixed volume but no fized shape |
gas | has no fixed volume or shape |
particle | the atoms or molocules that make up a substance |
freeze | changing a liquid into a solid |
melting | changing a solid into a liquid |
boling | changing a liquid into a gas |
condenstaion | changing a gas into a liquid |
sublimation | changing a solid into a gas |