Merits of expansion in solids
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One advantage of expanding metal is its use in thermometers. The mercury (liquid-metal) in the tube expands when they get hotter. One disadvantage of expansion is that roads crack during the cold season because they contract and expand during the hot summer. This expansion can make road surfaces rough.
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advantage of expanding metal is its use in thermometers. The mercury (liquid-metal) in the tube expands when they get hotter.
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