Monday, April 11, 2011

How much does a cloud weigh?

It depends on the amount of moisture is in the cloud and the size of the cloud. Different kinds of clouds carry different amounts of weights.

"Cloud" Experiment #1- What Happened?

We made a cloud using boiling water in a jar, adding a lit match, then by putting a cup of ice on top enclosing the jar. The ice cools the air at the top of the bottle. When the water vapor rising from the hot water on the bottom of the bottle reaches the cooler air at the top, it begins to condense and form drops around the smoke particles, which serve as condensation nuclei, and a cloud is created.

"Cloud" Experiment #2-What Happened?

We made a cloud using a plastic bottle with a small amount of water in it, then lit a match put it in the bottle, & then quickly closed the bottle. When we squeezed the bottle we increased the pressure in the bottle, creating a cloud. (Clouds need three things to form: Moisture, a temp/ pressure change and a condensation nuclei.)

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