This NASA visualization shows sea surface salinity observations (September 2011-September 2014). Students review the video and answer questions.

What is the hydrosphere and why is it important?

Every day, scientists at NASA work on creating better hurricanes on a computer screen. At NASA’s Goddard Space Flight Center in Greenbelt, Maryland, a team of scientists spends its days incorporating millions of atmospheric observations. Sophisticated graphic tools and lines of computer code to create computer models simulating the weather and climate conditions responsible for hurricanes.