Colourful Notes for Class 7 Science Chapter 4 The World of Metals and Non-metals are given in this article. These notes are made by subject toppers in presence of subject teachers to assure accuracy and authenticity. All important topics like physical and chemical properties of metals and non-metals, reactions with air and water, uses of metals and non-metals, alloys, corrosion, and prevention of rusting of Chapter 4 are covered in these notes.
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The World of Metals and Non-metals - Colourful Notes
