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What is one sign that indicates a physical change? a) matter changes, but no new substance is formed b) a substance changes color when exposed to air. c) something catches fire and turns back d) temperature
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Aug 6, 2018
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What is one sign that indicates a physical change?
a) matter changes, but no new substance is formed
b) a substance changes color when exposed to air.
c) something catches fire and turns back
d) temperature drops as two liquids are mixed together
Biology
high-school
Joseph Willcoxson
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Joseph Willcoxson
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something catches fire and turns back
Jimmie Tyrrell
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Aug 12, 2018
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Jimmie Tyrrell
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