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States of Matter

QuestionAnswer
The temperature at which a substance changes from a liquid to a gas; the same as the condensation point, or temperature at which a gas changes to a liquid. Boiling point
The temperature at which a substance changes from a solid to a liquid; the same as the freezing point, or temperature at which a liquid changes to a solid. Melting point
A solid made up of particles that are not arranged in a regular pattern. Amorphous solids
A solid that is made up of crystals in which particles are arranged in a regular, repeating pattern. Crystalline solids
Energy from the sun. Radiant Energy
The lowest possible temperature at which thermal energy is as close to zero as it can be, approximately -273 degrees Celsius. Absolute zero
The force of pushing on a surface divided by the area of that surface. Pressure
A solid, liquid, and gas. States of matter
A state of matter that has a definite shape and a definite volume. Solid
A state of matter that has no definite shape but has a definite volume. Liquid
A state of matter with no definite shape or volume. Gas
The change of state from a gas to a liquid. Condensation
The change of state from a liquid to a gas. Vaporization
Any substance that can flow. Fluid
The change in state from a solid to a liquid. Melting
The change in state from a liquid to a solid. Freezing
The direct transfer of heat from one substance to another. Conduction
The transfer of heat by the motion of matter, such as by moving air or water. Convection
The process that occurs when vaporization takes place inside a liquid as well as on the surface. Boiling
The process that occurs when vaporization takes place only on the surface of a liquid. Evaporation
The results of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together; causes the surface to act as if it has a thin skin. Surface tension
The change in state from a solid directly to a gas without passing through the liquid state. Sublimation
A measure of the average energy of motion of the particles of a substance. Temperature
Created by: wheat93