Complete Summary and Explanation of Exploring Substances: Acidic, Basic, and Neutral – NCERT Class 7 Science Chapter 2 – Full Chapter Notes, Key Concepts, Activities, Natural Indicators, Litmus Test, Science Fair Invisible Ink, and Textbook Solutions

A comprehensive, easy-to-understand explanation of NCERT Class 7 Science Chapter 2 – Exploring Substances: Acidic, Basic, and Neutral. Covers National Science Day science fair story, litmus as natural indicator, how to identify acids, bases & neutral substances, preparation of lime water, turmeric & red cabbage as indicators, invisible ink magic, colour changes with red rose extract, plus all textbook activities (Activity 2.1), tables, Let Us Enhance Our Learning (Page 14–16) questions with answers, and exam-ready notes in simple language.

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