This is a 15-day unit of inquiry-based lessons about the surface features of the Moon and the Earth and how these two worlds formed and continue to evolve. Students participate in real science as they help lunar scientists map the surface of the... (View More) Moon with MoonMappers, an online citizen science project that lets the public analyze real data from NASA's Lunar Reconnaissance Orbiter. The lessons in this unit follow the 5E instructional model. Includes an overview of citizen science, glossary of lunar feature vocabulary, and featured links. (View Less)

This is an activity about the planet Mars. Learners will create cratered surface models illustrating different lengths of time. Then, they will compare their models with three different surface images of Mars, placing these images in order from... (View More) youngest to oldest based on the evidence. Learners will discover that the oldest surface has the most craters, while also discussing what events could make a surface on a planet both half-craters and half-smooth. (View Less)