Curated OER
Compare Topography of Earth and Mars with a Worldwide Telescope
Young scholars compare geography to topography. In this topography lesson, students examine the topography of the surfaces of the Earth. Young scholars compare one feature of Earth to one feature of Mars and present in a PowerPoint.
NASA
Nasa: Shuttle Radar Topography Mission
The Shuttle Radar Topography Mission, a project to collect the most accurate topographic database for the Earth, is documented at this site.