Wednesday, May 21, 2008

Water Cycle! Not a Bicycle.

Earth's water is never stopping. It will keep moving through the cycle it's been going through since the begining of time. The rainwater is turned into water vapor during the evaporation process and then transforms into clouds that are in our atmosphere. When those clouds are full with the water vapor, and can no longer hold it, it rains, or another word is condensation. Condensation is when the water vapor in the air turns into a liquid.

In class, we participated in an experimental activity that demonstrated a way the water cycle could work. We had used plastic spoons, which acted as evaporation, to spoon water from reservoirs. For the reservoirs we used tanks of different sizes, with different amounts of water. The tanks were labeled with what it represented. For example, one reservoir was ocean, another was aquifer, and another was rivers and streams. We also had clouds, which were small plastic cups in which we spooned water into. When the cups were fille dup to a certain point, they were to rain (pour) the water into the reservoir that they were assigned. When the experiment was finished, our supervisor told us that this was an example of a balanced cycle. However, our class didn't think that this was so. Thus, our supervisor gave us another experiment, however, this time we added larger plastic cups, which represented what we humans use. She also added empty tanks for the large plastic cups to fill. When the experiment was over, there wasn't that much water left in the reservoirs, however, the empty tanks for our human usage were practically overflowing! Our experiment supervisor told us that this experiment was an example of an unbalanced cycle, not the other one. I believe that it is surprising that we impact the water cycle, and take so much from the reservoirs, that other animals and plants need to.

Wanna know more about the water cycle? Click here!

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