CBSE /Class 7
Science MCQ Based On Physical and chemical changes
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CBSE Class 7 Science Physical and chemical changes
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Recall the cause of damage to ships.
Recall what have you read about Ozone layer.
What do you know about chemical changes?
What terms have you read about chemical changes?
Try to remember the examples of physical changes.
What do you know about the physical properties of metals?
Recall about the products formed by mixing of iron.
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