Properties Of Matter

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Pure Substance

Back 1

Or simply substance, is matter that always has exactly the same

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Element

Back 2

Is The Substance that cannot be broken down into simpler substances

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Atom

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Is the smallest particle of an element

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Compound

Back 4

Is a substance that is made from two or more simpler substances and can be broken down into those simpler substances. The simpler substances are either elements or other compounds.

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Heterogeneous Mixture

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Is when the parts of the mixture are noticeably different from one another. ( "Different" and "kind" )

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Homogeneous Mixture

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Is when the substances are so evenly distributed that it is difficult to distinguish one substance in the mixture from another. ( "Same" and "kind" ) *Appears to be same

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Solution

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Is when substances dissolve and form a homogeneous mixture.

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Suspension

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Is a heterogeneous mixture that separates into layers over time.

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Colloid

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Contains some particles that are intermediate in size between the small particles in a solution and the larger particles in a suspension. Like solutions, colloid do not separate into layers and you can not use filter to separate the parts. Colloids do scatter light like a suspension.

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Physical Property

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Is any characteristics of a material that can be observed or measured without changing the composition of the substance in the material.

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Viscosity

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Is the tendency of a liquid to keep from flowing - it's resistance to flowing. The greater the viscosity, the slower the liquid moves.

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Conductivity

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Is the ability of a material to allow heat to flow.

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Chemical Change

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Occurs when a substance reacts and forms one or more new substances.

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Precipitate

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Is any solid that forms and Separates from a liquid mixture.

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Malleability

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Is the ability of a solid to be hammered without shattering.

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Melting Point

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Is the temperature at which a substance changes from solid to liquid.

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Boiling Point

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Is the temperature at which a substance boils.

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Hardness

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Is the ability of a material to be scratched, cut, or curved by or do the same to another material.

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Density

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Is the ratio of the mass of a substance to its volume.

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Physical Change

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Occurs when some of the properties of the material change, but the substance in the material remain the same. (Without change)

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Chemical Property

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Is any ability to produce a change in the composition of the matter.

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Flammability

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Is a materials ability to burn in the presence of oxygen.

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Reactivity

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Is the properties that describes how readily with other substances.