demonstrate the process of boiling with the help of an activity
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investigate the process of boiling and what is involved when water changes ... Writing a procedure to test a prediction ... boiled away, and studying boiling can help us under- stand why ... Subsequent activities will show that boiling occurs at all.
observation
1.Temperature when the water Boiling point of water
2.Starts boiling t1 (in °C) Continue to boil (Stationary temperature) t2 (in °C) (t1 + t2)/2 (in °C)
Precautions:
1.The bulb of the thermometer should be kept about 4-5 cm above the surface of water.
2.Pieces of pumice stone should be added to water before heating to avoid bumping.
3.Heating of water should be done by rotating the flame
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