This NASA visualization shows sea surface salinity observations (September 2011-September 2014). Students review the video and answer questions.
Educational Resources - Search Tool
In Part A of this lab, students will examine a variety of images and maps of the whole Earth in order to identify the major components of the Earth system at a global scale.
This is the first of a four-part series on the water cycle, which follows the journey of water from the ocean to the atmosphere, to the land, and back again to the ocean. Students review the video and answer questions.