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Water supply in the Southwestern United States depends on snow. Students discover its importance through analysis and evaluation of data, satellite images, space shuttle photos, and ground-based observations, and then apply their findings in a... (View More)

Keywords: Snowpack

Students confront the challenge of improving global agricultural production in order to feed increasingly larger populations. Students evaluate tables, maps, graphs, photos and satellite images detailing global population growth patterns and... (View More)

This is a lesson about the search for life on Mars. Learners will participate in three activities. In the first activity (Imaginary Martians) learners will compare a fictional organism with what they know about life on Mars today. In the second... (View More)

In this activity, learners will use satellite data to investigate the biological health of the ocean. Using a color scale, learners will study ocean color data from NASA's Sea-viewing Wide Field-of-view Sensor (SeaWiFS) to evaluate the biological... (View More)

This activity is about the discovery of water ice on Mars. Learners will record and graph temperature data and use a model of an ice-rich and ice-free surface on Mars to examine how ice content in the martian soil would impact the temperature of a... (View More)

Searching the six satellite images of Mars provided in this investigation, students identify and locate areas that possibly sustained life in the past, might now sustain life, or could in the future. The URL opens to the investigation directory,... (View More)

The use or abuse of the Chesapeake Bay is examined and discussed in the form of a student role-playing activity. Each student gathers relevant background information and formulates questions from briefing cards included in the investigation. Ten... (View More)

This is a lesson about characteristics necessary for life. Learners will identify the top candidates for life in the solar system by examining Habitability Cards, which discuss each planet and the six large moons in terms of water temperature,... (View More)

This is a lesson about organisms living under extreme conditions on Earth serving as analogs for extraterrestrial life. Learners will play a card game to create a set by matching an extremophile, an extreme habitat on Earth, and an extraterrestrial... (View More)

This is a lesson about the definition of life. Learners will compare real and fake or live and dead objects and brainstorm ideas about what life is; refine the definition by playing 20 Questions to identify an object or organism; and test the... (View More)