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University Corporation for Atmospheric Research
Ucar: The Water Cycle
Water can be in the atmosphere, on the land, in the ocean, and underground. It moves from place to place through the water cycle.
PBS
Pbs Learning Media: Earth's Water Movements
The paths that water can take through Earth's systems are many and complex. Examine the following diagram from NASA depicting the water cycle. Studying the water cycle is important because changes in the water cycle affect all parts of...
American Chemical Society
Middle School Chemistry: Changing State Condensation
Explore the process of condensation as it pertains to molecular movement in water vapor.