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Science Unit 4
Vocabulary Terms
Term | Definition |
---|---|
matter | anything that has mass and occupies space |
mass | amount of matter an object has |
physical property | a characteristic of matter that you can observe or measure directly |
density | the amount of matter present in a certain volume of a substance |
law of conservation of mass | you cannot make or destroy matter |
solid | definite volume and shape |
liquid | definite volume but not a definite shape |
gas | does not have a definite volume or shape |
change of state | occurs when matter changes from one state to another |
evaporation | process by which a liquid changes into a gas |
condensation | process by which gas changes into a liquid |
magnet | object that attracts iron and a few other metals |
magnetic field | space around the magnet in which the force of the magnet acts |
magnetic pole | part of the magnet where the force is the strongest |