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chapter 3
chapter 3 vocab
17
Science
8th Grade
01/17/2011

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Term
states of matter
Definition
the physical forms of matter, which include solid, liquid, and gas
Term
solid
Definition
the state of matter in which the volume and shape of a substance are fixed
Term
liquid
Definition
the state of matter that has a deinite volume but dont have a definite shape
Term
surface tension
Definition
the force that acts on the surface of a liquid and that tends to minimize the area of the surface
Term
viscosity
Definition
the resistance of a gas or liquid to flow
Term
gas
Definition
a form of matter that does not have a definite shape or volume
Term
temperature
Definition
a measure of how hot (or cold) something is; specifically, a measure of the movement of particles
Term
volume
Definition
a measure of the size of a body or region in 3d space
Term
pressure
Definition
the amount of force exerted per unit area of a surface
Term
Boyle's law
Definition
the law that states that the volume of a gas is inversely proportional to the pressure of a gas when temperature is constant
Term
Charle's law
Definition
the law that states that the volume of a gas is directly proportional to the temperature of a gas when pressure is constant
Term
change of state
Definition
the change of a substance from one physical state to another
Term
melting
Definition
the change of state in which a solid becomes a liquid by adding energy
Term
evaporation
Definition
the change of a substance from a liquid to a gas
Term
boiling
Definition
the conversion of a liquid to a vapor when the vapor pressure of the liquid equals the atmospheric pressure
Term
condensation
Definition
the change of state from a gas to a liquid
Term
sublimation
Definition
the process in which a solid changes directly into a gas
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