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Example Questions
Example Question #21 : Changes Caused By Heating And Cooling
An example of a change caused by heating or cooling that can be reversed would be the baking of a birthday cake.
Possible Answers:
True
False
Correct answer:
False
Explanation:
The statement above is a false statement and an example of how heating and cooling can NOT be reversed. If you bake a cake, a chemical change has occurred when the heat was applied. This cannot be reversed, and the cake cannot be returned to a batter or individual ingredients.
Example Question #22 : Changes Caused By Heating And Cooling
This photo represents a change due to heating or cooling that can be reversed.
Possible Answers:
False
True
Correct answer:
False
Explanation:
The statement above is a false statement and an example of how heating and cooling can NOT be reversed. Once a match is struck and lit, it cannot be reversed. The match can be put out, but it cannot "unlit" or brought back to its original state.
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