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B3 U1 L1-6

book 3 unit 1

TermDefinition
matter anything with mass that takes up space
mass amount of matter in an object
weight measure of gravitational force on an object
volume the amount of space an object occupies
density mass in a given volume
physical property can be observed without changing substance identity
chemical property the ability of a substance to change identity
physical change change affecting physical properties
chemical change one or more substances change into a different substance
law of conservation of mass mass cannot be created or destroyed
atom smallest unit of an element with same properties as that element
element one or more of combined atoms
compound different kinds of atoms combined
mixture variety of atoms combined
pure substance substance with definite phys. and chem. properties
heterogeneous mixture without a uniform composition
homogeneous mixture with uniform composition
solid has definite volume and shape
liquid has definite volume but no definite shape
gas has no definite volume or shape
freezing change from liquid to solid
melting change from solid to liquid
evaporating change from liquid to gas
boiling rapid change from liquid to gas
condensation change from gas to liquid
sublimation change from solid directly into a gas
deposition change from gas directly to a solid
Created by: 18hoffmannk0805