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Chapter 2 vocab

vocab words

TermDefinition
Pure Substance Matter that always has exactly the same composition.
Element Is a substance that cannot be broken down into simpler substances.
Compound Is a substance that is made from two or more simpler substances and can be broken down into simpler substances.
Heterogeneous Mixture Parts of a mixture that are noticeably different from one another.
Homogeneous Mixture The substances are so evenly distributed that it is difficult to distinguish one substance in the mixture from another.
Atom Smallest particle of an element.
Solution When substances dissolve and form homogeneous mixture.
Suspension Heterogeneous mixture that separates into layers over time.
Colloid Contains some particles that are intermediate in size between the small particles in a solution and the larger particles in a suspension.
Physical Property Any characteristic of a material that can be observed of measured without changing the composition of the substances in the material.
Viscosity The tendency of a liquid to keep from flowing.
Conductivity A materials ability to allow heat to flow.
Malleability The ability of the solid to be hammered without shattering.
Melting Point The temperature at which a substances changes from a solid to a liquid.
Boiling Point The temperature at which a substance boils
Filtration A process that separates materials based on the size of their particles.
Distillation A process that separates the substances in a solution based on the boiling points.
Physical Change Occurs when some of the properties of a material change, but the substances in the material remain the same.
Chemical Property Any ability to produce a change in the composition of matter.
Flammability A materials ability to burn in the presence of oxygen.
Reactivity The property that describes how readily a substance combines chemically with other substances.
Chemical Change Occurs when a substance reacts and forms one or more new substances.
Precipitate Any solid that forms and separates from a liquid mixture
Created by: hayden.murphy
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