Q:

How can you make a 3D model of the water cycle?

A:

A 3D model of the water cycle can be easily made using ordinary household items and the sun's warming power. To make the model, create a closed system where evaporation and condensation may be observed.

The requirements are simple. Begin with a bowl and a piece of plastic wrap. The first jar or bowl is filled to about a quarter's height with water. A rock or coffee mug is then placed inside. The plastic wrap is then placed on top, and the bowl is taped shut.

Placed in the sun, the water will first evaporate and then condense, eventually becoming liquid droplets that will "rain" down. A few drops of food coloring added to the water can enhance the visual effect.


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