Students of VA observed that the LED bulb in the circuit does not glow when the ends of the circuit are dipped in distilled water. When salt is added to the water the LED bulb glows. When the salt concentration increases The bulb glows more brightly.
This activity was followed by learning that the Human body is a conductor of electricity. Students learnt the various precautions to be followed while working with electricity. Students surveyed the danger warning signals on their floor.
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