Review this page to learn about the background of volcanoes and their eruptions.

Explore the energy and matter cycles found within the Earth System. 

Hurricanes are the most powerful weather event on Earth. NASA’s expertise in space and scientific exploration contributes to essential services provided to the American people by other federal agencies, such as hurricane weather forecasting.

Phytoplankton distribution background information.

Students use Phytopia: Exploration of the Marine Ecosystem, a computer-based tool, to investigate various phytoplankton species and topics relating to phytoplankton biology. 

 Air, Water, Land, & Life: A Global Perspective