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more science

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Across
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This does not change during a phase change
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Solid to gas
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Frequency of a wave is measured in this
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(Two words ) equals the number of protons in an element
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Gas to solid
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Maximum movement of a wave away from the rest position
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Gas to liquid
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A chemical bond in which two atoms share a pair of valence electrons (two words)
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Solid to liquid
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Liquid to gas
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Metals, non metals and these are found on the periodic table
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This type of gas is colorless, odorless and very unreactive (stable)
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A reversible physical change that occurs when a substance changes from one state of matter to another
Down
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(two words) equals the sum of the protons and neutrons in the nucleus of an atom
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Lowest point of a wave
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Liquid to solid
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Wave bounces off a surface it cannot pass through
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Gas to liquid
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Non metals are found on this side of the periodic table
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The force that holds cations and anions together (two words)
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Highest point of a wave