Physical and Chemical Changes Quiz
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Preview questions
1. Which of the following is a characteristic of a physical change?
New substances are formed · Energy is absorbed or released · The change is usually reversible · Chemical bonds are broken
2. What happens during a chemical change?
The physical state changes · The composition of the substance changes · The size of the substance changes · The color of the substance changes
3. Which of the following is an example of a physical change?
Burning of wood · Rusting of iron · Melting of ice · Digestion of food
4. Which of the following indicates a chemical change?
Dissolving sugar in water · Boiling of water · Formation of a gas · Crushing a can
5. In which process does a solid change directly to gas?
Sublimation · Condensation · Evaporation · Freezing
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