Hot vs. Cold Water: Boiling Experiment
Purpose: The purpose of this experiment is
to find out whether hot water or cold water will start to boil first if heated
under the same conditions.
Hypothesis: Common sense would yield that
the hotter the water, the quicker it should boil, because it is already closer
to the boiling point, but the hypothesis of this experiment will stray away from
such nonsense and contend that the colder water will boil before the
hot water, because the cold water will increase at a faster rate than the hot
water, ultimately passing it up.
Equipment: This experiment will require a
pot, a heat source (stove), a measuring cup, stopwatch, a cooling source
(fridge), pen and paper, source to get hot and cold water, tea bag and coffee
Procedure: The first step is to measure out
three cups of water, and place in the refrigerator to chill. Then measure out 3
cups of hot tap water and place in the pot and turn on the flame, while starting
the stopwatch. When boiling occurs, stop the watch, record the time. Dry the
pot, and allow it to return to room temperature. Repeat same process once cold
water has been allowed to chill, record results, and compare.
||Amount of Water
||Time Required to Boil|
|Hot Tap Water
||3 minutes, 4 seconds|
|Cold Tap Water
||4 minutes, 17 seconds|
Room temperature was at 69 degrees Fahrenheit, and the barometer was
registering 30.21 inches.
Conclusion: The experiment has shown that
common sense once again prevails, and hot water boils much-much quicker than
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