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LSH Pscience 18A

Classification of Matter

TermDefinition
Substance Matter with fixed composition
Element Matter with only one type of atom
Compound 2 or more elements chemically combined
Mixture 2 or more materials that can be physically separated
Homogenous Mixture A mixture that is uniform throughout
Heterogeneous Mixture A mixture where different materials can be distinguished easily
Solution A homogenous mixture
Colloid A heterogeneous mixture of particles too small to be visible that do not settle out
Suspension A heterogeneous mixture of particles large enough to be visible that will settle out over time
Tyndall effect The scattering of light as it passes through a colloid