Interpret the map, or model, to find patterns in the occurrence of tropical cyclones from 1842 through 2018.

Students will watch a video on the Greenland Ice Sheet and answer questions.

Watch the video and have students answer the questions about Earth's cryosphere.

Compare pictures of different volcanoes. Then visit NASA's Space Place to learn about volcanoes and answer questions about volcanic eruptions.

Students will review the NASA Space Place video, "Tectonic Forces", and answer questions about tectonic plates.

Learn about volcanic ash and watch a visualization of the Calbuco volcano to see how ash travels around the world. 

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

An urban heat island is a phenomenon that is best described when a city experiences much warmer temperatures than in nearby rural areas. The sun’s heat and light reach the city and the country in the same way. The difference in temperature between urban and less-developed rural areas has to do with how well the surfaces in each environment absorb and hold heat.

Students examine satellite images of an island before and after a volcanic eruption to determine the impact of the eruption.

Students will synthesize information from maps that show population, concentrations of PM_2.5, and PM_2.5-attributable mortality across the globe in order to draw conclusions about the relationship between particulate pollution and human health.