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States of matter
solid, liquid and gas
27
Science
6th Grade
09/09/2006

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Term
Solid
Definition
the state in which matter has definite shape and volume.
Term
states of matter
Definition
the physical forms in which a substance can exist (solid, liquid or gas)
Term
liquid
Definition
the state in which matter takes the shape of its container and has a definite volume.
Term
gas
Definition
is the state in which matter changes both shape and volume.
Term
pressure
Definition
the amount of force exerted on a given area.
Term
Boyle's Law
Definition
the law that states that for a fixed amount of gas at a constant temperature, the volume of the gas increases as its pressure decreases, and the volume of the gas decreases as its pressure increases. Boys visit ill pupp dogs.
Term
Charle's Law
Definition
the law that states that for a fixed amount of gas at a constant pressure, the volume of the gas increases as its temperature increases and the volume of the gas decreases as its temperature decreases.
Term
Plasma
Definition
the state of matter that does not have a definite shape or volume and whose particles have broken up. **hint** the aurora borealis comes from this.
Term
change of state
Definition
the change of a substance from one physical form to another.
Term
Melting
Definition
the change of state from a solid to a liquid.
Term
freezing
Definition
the change of state from a liquid to a solid.
Term
vaporization
Definition
the change of state from a liquid to a gas.
Term
boiling
Definition
vaporization that takes place through out a liquid
Term
evaporation
Definition
vaporization that occurs at the surface of a liquid, below the liquids boiling point.
Term
condensation
Definition
the change of state from a gas to a liquid.
Term
sublimation
Definition
change of state from a solid directly to a gas.
Term
crystalline solid
Definition
type of solid that has an orderly three dimensional arrangement of particles. The particles are arranged in repeating rows or patterns.
Term
amorphous solid
Definition
type of solid made of particles that are in no particular order.
Term
surface tension
Definition
force that acts on the particles at the surface of a liquid
Term
viscosity
Definition
a liquid resistance to flow
Term
melting point
Definition
the temperature at which a substance changes from a solid to a liquid.
Term
freezing point
Definition
the temperature at which a substance changes from a liquid to a solid.
Term
endothermic change
Definition
this change happens because energy is gained by the substance as it changes state.
Term
exothermic change
Definition
this happens because energy is removed from or taken out of the substance as it changes state.
Term
Boiling point
Definition
the temperature at which liquid boils.
Term
condensation point
Definition
temperature at which gas becomes a liquid.
Term
condensation point
Definition
temperature at which gas becomes a liquid.
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