Chapter revision - The world of metals and non-metals. Chemistry CBSE Live product, Class 7 (2026-27): lessons, tests, tasks.

1.	Physical properties of materials
2.	Chemical properties of metals and non-metals

1.	Properties of materials Difficulty: hard	5
2.	Conditions of rusting Difficulty: hard	5
3.	CBQ - effect of air and water on other metals Difficulty: hard	4
4.	CBQ - oxides of metals and non metals Difficulty: hard	4
5.	Applications of Non metals Difficulty: hard	4

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Chapter revision - The world of metals and non-metals