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From Karnataka Open Educational Resources
→1. Acid-Base test using litmus paper
==== [https://karnatakaeducation.org.in/KOER/en/index.php/Acid-Base_test_using_litmus_paper 1. Acid-Base test using litmus paper] ====
==== [https://karnatakaeducation.org.in/KOER/en/index.php/Acid-Base_test_using_litmus_paper 1. Acid-Base test using litmus paper] ====
==== 2. Valcano ====
==== 3. Oxygen is necessary for fire ====
==== 4. Types of pollution : Air pollution, Water pollution and Soil pollution ====
6. Colour Changing flowers
==== 5. Density column ====
==== 6. Colour Changing flowers ====
=== Physics : ===
=== Physics : ===
