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30 Cards in this Set
- Front
- Back
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weight
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a measurement of the pull of gravity on the mass of an object
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gravity
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a force of attraction of the pull of gravity on the mass of an object
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law of conservation of mass
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the law stating that mass can neither be created nor destroyes during any physical or chemical changes
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volume
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a measure of the amount of space taken up by an object
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density
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the amount of matter (mass) in a given volume of a particular substance
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gas
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a phase of matter that has no definite shape and volume
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liquid
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a phase of matter that has definite volume but no definite shape
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solid
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a phase of matter that has a definite shape and volume
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amorphous solid
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a solid-like material that does not keep a definite shape
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crystalline solid
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a solid that does not flow and is composed of particlesin a regular, repeating pattern
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melting
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the changing of a solid to a liquid
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freezing
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the change of a liquid to a solid
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evaporating
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the change of a gas into a liquid
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boiling
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vaporation occuring throughout liquid; rapid changing of a liquid to a gas
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sublimating
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a phase of change in which a gas is formed directly from a solid and vice versa
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vaporization
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liquid changes to a gas
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element
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pure matter that contains only one kind of atom
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compund
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pure matter composed of 2 or more different kinds of atoms that are chemically bonded
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pure subsance
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made up of only one kind of matter with difinite propertied and is the same thorughout
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impure subsatnce
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made of more than one kind of matter
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atom
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the smallest, unique matter particle
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heterogeneous mixture
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a mixture in which the compsition soed not appear the same throughout and its parts are easily seen
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homogeneous mixture
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a mixture in which the composition appears the same throughout
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solution
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a homogeneous mixture in which one substance is dissolved in another
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solvent
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the substance in a solution that does the dissolving
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solute
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the substance in a solution that is dissolved by finding the spaces between the particles of the solvent
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colloid
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a homogenous mixture with particles too big to be considered a true solution
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alloy
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a solid solution of two or more metals
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suspension
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a homogeneous mixture that eventually seperates and settles out
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mixture
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2 or more kinds of pure matter that are mixed thogether and can be seperated by physical changes
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