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matter ch.2

vocabulary words

QuestionAnswer
states of matter the physical forms in which matter can exist
atom the smallest mater of a subtance that still has that substance's characteristic properties
molecule the combination of two or more atoms creating an element or compound
solid a state of matter that has a definite volume and a definite shape
crystalline a very orderly solid with a three-dimensional arrangement of particles found in a repeating pattern of rows
amorphous a less organized solid object with particles that have no special or particular arrangment or pattern
liquid a state of matter that has a definite volume and no definite shape
surface tension the force that acts on the suface of a liquid and that tends to minimize the area of the surface
viscosity the resistance of gas of liquid to flow
gas a state of matter that has no definite volume or shape
temperature a measure of how hot(or cold) something is; specifically a measure of the movement of particles
melting the change of state where a solid becomes a liquid by adding energy
endothermic a change in which energy, in the form of heat, is added to a substance
freezing the change of state where a liquid becomes a solid by removing energy
exothermic a change in which energy, in the form of heat, is removed from a substance
evaporation the change of state from liquid to gas at the suface of the liquid caused by an increase in energy
boiling the change of state from liquid to gas thoughout a liquid caused by an increase in energy
condensation the change of state where a gas becomes a liquid by removing energy
sublimation the change of state where a solid directly becomes a gas without passing though a liquid state
Created by: kiki98