Which of the following is an example of a physical change?
A. A matchstick changes color when it burns.
B. Bubbles form when vinegar and baking soda are mixed.
O C. A solid forms when two clear liquids are mixed.
D. A piece of steel bends when it is pounded with a hammer.
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Which of the following is an example of a physical change?
A. A matchstick changes color when it bu...
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