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It's raining! It's pouring!

The water cycle never stops. Driven by the sun, a single molecule of water moves from one state to another - or from one form to another.

One molecule of lake water evaporates, becomes a vapor, and floats around in a cloud. It condenses, becomes water again, and falls to Earth as precipitation. (Precipitation is when water falls to Earth as rain, snow, sleet or hail.) That precipitation falls on the North Pole and freezes as solid ice. Eventually the ice melts and becomes liquid again and the cycle keeps going.

With power from our Sun, the water cycle never stops!

Imagine That

Imagine you are a water molecule. Start with evaporation, condensation, or precipitation, and write a short story about your adventures traveling through the water cycle. To make your story more interesting, choose a real location, and give your molecule a name and personality. Be sure to use the terms vapor, precipitation, evaporation, clouds, condensation, and temperature somewhere in your story. Have fun!

Download the plug-ins: Get Adobe Acrobat Reader , and Get Quicktime Player. (The QuickTime plug-in is needed to play sounds and movies correctly.)

Want to share photos of you or your friends doing this activity? Send it in an e-mail with the following information:

  1. The title of the activity
  2. The URL (Internet address)
  3. Your name.

Remember that no pictures can be used that show student faces or student names on it. 

Teachers should view the Teacher Site Map to relate Sci-ber text and the USOE 4th grade science core.

Updated October 24, 2008 by: Glen Westbroek

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