Chemical Change Evidence Quiz Form
Test your knowledge of the evidence that indicates a chemical change. Select or provide the best answer for each question.
Which of the following is NOT evidence of a chemical change?
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Change in color
Change in state (solid to liquid)
Production of a gas
Formation of a precipitate
A white solid forms when two clear solutions are mixed. What is this an example of?
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Gas production
Precipitate formation
Color change
Temperature decrease
Which observation best indicates that a chemical change has occurred?
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Water boiling
Ice melting
Iron rusting
Salt dissolving in water
A student mixes two liquids and observes bubbles forming. What type of evidence is this?
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Formation of a precipitate
Color change
Gas production
Change in temperature
Which of the following is an example of a color change that indicates a chemical change?
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Copper turning green over time
Water freezing into ice
Sugar dissolving in tea
Breaking a glass
List two signs that a chemical change has occurred.
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When baking a cake, what evidence suggests a chemical change is taking place?
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True or False: Dissolving salt in water is evidence of a chemical change.
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True
False
Explain why the rusting of iron is considered a chemical change.
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Which of the following is NOT a sign of a chemical change?
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Change in odor
Change in shape
Change in temperature
Production of light
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