Class VII Science Quiz: Physical and Chemical Changes
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Preview questions
1. What is a physical change?
Change in chemical composition · Change in state or appearance · Change in temperature only · Change in color only
2. Which of the following is a chemical change?
Melting of ice · Dissolving sugar in water · Burning of wood · Breaking glass
3. Which of the following is NOT a characteristic of physical changes?
Reversible · No new substance formed · Change in mass · Change in shape or size
4. Rusting of iron is an example of which type of change?
Physical change · Chemical change · Mechanical change · Biological change
5. Which process is a physical change?
Fermentation · Evaporation of water · Combustion · Digestion
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