Introduction - Concepts

Last updated at April 25, 2026 by

Changes Around Us: Physical and Chemical Changes = Things becoming different from before Around Us = In our daily life and surroundings Physical = Only appearance changes, same substance Chemical = New substances are formed

Everything around us keeps changing all the time. Some changes keep the same substance, while others create new substances.

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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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