The advance-and-retreat cycle of snow cover drastically changes the whiteness and brightness of Earth. Using two maps created using NASA satellite data for 2017, students review the seasonal differences of snow and ice extent and answer questions on their observations.

Students will analyze a line graph that shows how the surface temperature and air temperature values change over the course of 24 hours.

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. 

Students analyze a graph that illustrates the change in global surface temperature relative to 1951-1980 average temperatures.

Students will use the NASA Earth Observations analysis tool to explore changing albedo in the Arctic compared with other areas of Earth.

Students will make a claim about whether changing albedo contributes to changes in Arctic habitats.