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Unit 2 Vocabulary

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Across
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A combination of two or more substances where each of the substances keeps its own physical properties. No new substances are formed.
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shorthand method of representing an element
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Descriptions of matter.
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When matter is made up of all of the same kind of element or molecule.
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Property of matter that becomes clear during a chemical reaction.
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A material that is typically hard, opaque, shiny, and has good electrical and thermal conductivity
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Heat energy contained within the earth
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Energy that is released from unstable elements.
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Evidence of a chemical reaction: the absorption of heat
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each of more than one hundred substances that cannot be broken down into simpler substances
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Organic matter used as fuel to generate electricity
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Energy generated from converting sunlight to electricity.
Down
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When a new solid forms as a result of a chemical reaction.
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a process that involves rearrangement of the atoms in a substance
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Energy from the movement of water
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a thing that is composed of two or more separate elements
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occurs when a substance combines with another to form a new substance
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Energy generated from the spinning of turbines by the movement of air.
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A mixture where each substance retains its own physical properties.
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An arrangement of all the known elements.
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How a metal or mineral reflects light
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Evidence of a chemical reaction: the release of heat
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Energy generated by the movement of tiny particles within an object
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able to be hammered or flattened in a press
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An element that has properties that are completely different from metals.
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The basic building blocks of all matter. These come together to form compounds.