Classify the changes involved in the following processes as physical or chemical changes:
Photosynthesis
Dissolving sugar in water
Burning of coal
Melting of wax
Beating aluminium to make aluminium foil
Digestion of food
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Solution
Photosynthesis → Chemical change
Dissolving sugar in water → Physical change
Burning of coal → Chemical change
Melting of wax → Physical change
Beating aluminium to make aluminium foil → Physical change
Digestion of food → Chemical change
Concept: Classification of Change: Physical Changes
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