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Printables
National Weather Service

The Water Cycle

For Teachers 4th - 6th
Looking for a full-color, labeled water cycle diagram? You found one! From evaporation to precipitation to plant uptake and everything in between, it's all here and beautifully illustrated. 
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Article
National Weather Service

National Weather Service: Jet Stream: The Jet Stream

For Students 9th - 10th
The concept of jet streams is explained on this site. Read about why jet stream winds blow from west to east, what the polar jet and subtropical jet are, the role that the rotation of the Earth plays, etc.