Some changes happen very slowly and we don't notice them.
Example
Rusting of iron , ripening of fruits , growing of plants
Some changes happen very quickly in front of our eyes.
Example
Burning matchstick , mixing baking soda with lemon

Speed of Changes Slow Changes = Rusting, ripening, growing Fast Changes = Burning, fizzing reactions Both Types = Can be physical or chemical
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CA Maninder Singh's photo - Co-founder, Teachoo

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CA Maninder Singh

CA Maninder Singh is a Chartered Accountant with 16+ years of practical experience and 20+ years of teaching experience. At Teachoo, he simplifies Accounts, Tax and GST with step-by-step examples so students can apply concepts confidently in exams and real life.

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