NASA
The Water Cycle: Watering the Land
The oceans contribute 37 trillion tons of water to land masses in the form of rain and snow. The third in a four-part series from NASA show satellite animations highlighting the precipitation on Earth. The videos show the movement of the...
NASA
The Water Cycle: Steaming the Air
How does water vapor move from point A to point B? The second installment in a series of four on the water cycle allows scholars to analyze satellite images to answer this question. The satellite animations show how evaporation and wind...