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Chapter 2

lessons 1-3

TermDefinition
solid A state of matter that has a definite shape and a definite volume
Crystalline solid A solid that is made up of crystals in which particles are arranged in a regular, repeating pattern
amorphous solid A solid made up of particles that are not arranged in a regular pattern
liquid A state of matter that has no definite shape but has a definite volume
fluid Any substance that can flow
surface tension The result 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
viscosity A liquids resistance to flowing
gas A state of matter with no definite shape or volume
pressure the force pushing on a surface divided by the area of that surface
melting The change in state from a solid to a liquid
melting point The temperature at which a substance changes from a solid to a liquid
freezing The change in state from a liquid to a solid
vaporization The change of state from a liquid to a gas
evaporation The process by which molecules at the surface of a liquid absorb enough energy to turn into a gas
boiling Vaporization that occurs at and below the surface of a liquid
boiling point The temperature at which a liquid boils
condensation Thee change in state from a gas to a liquid
sublimation the change in state from a solid to a gas without becoming a liquid
Charles law A principle that describes the relationship between the temperature and volume of a gas at constant pressure
directly proportional A term used to describe the relationship between two variables whose graph is a straight line passing through the point 0,0
Boyle's law A principle that describes the relationship between the pressure and volume of a gas at constant pressure
inversely proportional A term used to describe the relationship between two variables whose product is constant.
Created by: mwienclaw002
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