If Walter puts a bucket of water out in the sun on a hot, windy day, what will happen to the water level in the bucket?
(A.) The water level will go down as the water evaporates from the bucket.
(B.) The water level will rise as water condenses from the air, above the bucket.
(C.) The water level will stay the same since the water is protected from the wind.
(D.) The water level will only go down if the wind makes water splash out of the bucket.

(A.) The water level will go down as the water evaporates from the bucket.

Explanation: Evaporation is a process by which a substance in a liquid state changes to gaseous state as a result of temperature increase. When sun shines, the weather becomes hot as a result of the increase in atmospheric temperature, and consequent increase in temperature of the water in the bucket. As the temperature of the water increases, the kinetic energy of the water molecules begins to increase and the temperature continues to increase to a point where water molecules gains enough energy begin to escape from the surface of water into the atmosphere. The escape of water molecules from the bucket into the atmosphere is known as evaporation and this leads to decrease in the level of water in the bucket.

If Walter puts a bucket of water out in the sun on a hot, windy day, what will happen to the water level in the bucket?

The water level will go down as the water evaporates from the bucket.

Explanation:

As a result of presence of sun, evaporation will occur and this will allow the level of water to be reduced below the level it were initially.

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