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Unit 1.2

Science

TermDefinition
Atom the smallest unit of an element that maintains the properties of that element.
Element a substance that can't be separated or broken down into simpler substances by chemical means
Compound a substance made up of atoms of two or more different elements joined by chemical bonds
Mixture a combination of two or more substances that aren't chemically combined
Pure Substance a sample of matter,either a single element compound,that has definite chemical or physical properties.
Heterogeneous describes something that doesn't have a uniform structure or composition throughout
Homogeneous describes something that has a uniform structure or has composition throughout
Solid the state of matter in which the volume and shape of a substance are fixed
Liquid the state of matter that has a definite volume but not a definite shape
Gas a form of matter that doesnt have a definite volume or shape
Freezing the change of state from a liquid to a solid
Melting a change of state from a solid to a liquid
Evaporation the change of state from a liquid to a gas that usually occurs at the surface at the liquid over a wide range of temperatures
Boiling the change of state from a liquid to a gas that occurs at a specific temperature.
Condensation the change of state from a gas to liquid
Sublimation the change of state from a solid directly to a gas
Depositation the change of state from a gas directly to a solid
Created by: ghines-urena
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