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that which has mass and occupies space
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terms list
matter
that which has mass and occupies space
solid
of definite shape and volume
liquid
a substance in the fluid state of matter having no fixed shape but a fixed volume
gas
matter that does not have a definite shape or volume
chemistry
the study of matter
theory
idea that explains something and is supported by data
law
summary of observed behavior
scientific method
a method of investigation involving observation and theory to test scientific hypotheses
atoms
building blocks of matter
compounds
substances made by bonding atoms together in specific ways
elements
substances that contain only one type of atom
molecule
the smallest particle (one or more atoms) of a substance that has all the properties of that substance
physical property
odor, color, volume, state, density, melting point, boiling point
physical property
characteristic of a substance tha can change without the substance becoming a different substance
physical change
a change in the form of a substance that does not affect the composition of a substance
physical change
ice melting, cutting a piece of paper, boiling water
chemical change
the change of a substance into another substance throught the reorganization of aoms (a chemical reaction)
chemical change
frying an egg, burning gasoline, metal rusting
chemical property
characteristic that describes the ability of a substance to change to a different substance
filtration
separation of a solid from a liquid by using filter paper (based on molecular size)
distillation
a separation process that depends on the different boiling points of the substances
homogeneous mixture
a mixture that is the same throughout (solution)
heterogeneous mixture
a mixture containing regions with differing properties
alloy
a mixture of elements that has metallic properties
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