Satellite images help us to observe trends and to better understand our planet -- the rise and fall of water levels, the growth of urban centers, the path of forest fires. This teaching collection includes: 1) Earth From Space, a recorded online session with Andrew K. Johnson, a geographer at the National Air and Space Museum; 2) Reflections on Earth, a poster and lessons on how to use satellite images to investigate changes over time and how to use scale to calculate distance and area; 3) three sets of satellite images to practice these skills -- on flooding, urbanization, and forest fires; 4) a video about satellite technology, and 5) a video about an interactive globe (Tangible Earth).