Physical and Chemical Changes | Science | Chapter 6 | Class 7th | Questions and Answers |
JANDKNCERT | Science | Class 7th |
Physical and Chemical Changes | Science | Chapter 6 | Class 7th | Questions and Answers |
Chapter 6: Physical and Chemical Changes
EXERCISES
Q1. Classify the changes involved in the following processes as physical or chemical changes:
(a) Photosynthesis
(b) Dissolving sugar in water
(c) Burning of coal
(d) Melting of wax
(e) Beating aluminium to make aluminium foil
(f) Digestion of food
Ans.
(a) Chemical Change
(b) Physical Change
(c) Chemical Change
(d) Physical Change
(e) Physical Change
(f) Chemical Change
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