Classify the following processes into physical or chemical changes: Beating of aluminium metal to make aluminium foil. Digestion of food. Cutting of a log of wood into pieces. Burning of crackers

CBSE Class 7 CBSE Class 7 Science
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1

Classify the following processes into physical or chemical changes:

  1. Beating of aluminium metal to make aluminium foil.
  2. Digestion of food.
  3. Cutting of a log of wood into pieces.
  4. Burning of crackers.

Answer:

  • 1 and 3 are physical changes.
  • 2 and 4 are chemical changes.