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Subjects
Science CBSE
Class 7
Physical and chemical changes
Types of changes in chemistry

3. Choose the correct word

Exercise condition:

1.5 m.

Look and choose the correct answer under the topic physical and chemical changes.

1.

rusting
physical change
crystallisation
chemical change

2.

prevention of iron
crushing paper
chemical change
baking

3.

curd
spoiled food
Burning
evaporation

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