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. C. A solid forms whe... 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. C. A solid forms when two clear liquids are mixed. D. A piece of steel bends when it is pounded with a hammer.
Understand the Problem
The question is asking for an example of a physical change from a list of options provided. A physical change is one that affects one or more physical properties of a substance, such as shape or state, without altering its chemical composition.
Answer
A piece of steel bends when it is pounded with a hammer.
The piece of steel bending when pounded with a hammer is an example of a physical change.
Answer for screen readers
The piece of steel bending when pounded with a hammer is an example of a physical change.
More Information
A physical change involves a change in the state or appearance of a material without altering its chemical composition. Bending steel changes its shape but not its chemical structure.
Tips
A common mistake is confusing physical changes with chemical changes, which alter the chemical structure of the substance.
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