This is an activity about the discovery of water ice on Mars. Learners will create physical models using Earth samples to answer the question, "is it more likely that high altitude regions of Mars are composed of icy dirt (with ice filling the pore... (View More) space of soils) or dirty ice (with dust sprinkled through a mostly icy surface)?" Included are teacher and student guides and a powerpoint with gamma ray spectrophotometric imagery of the North Arctic of Mars. This is the 3rd of 5 activities in Buried Water Ice on Mars. (View Less)

This is a lesson about phase changes. Learners will observe ice melting and freezing under a variety of conditions and relate that to the Messenger mission. This is lesson 1 of 12 in Exploring Ice in the Solar System.

This is a lesson about the effects of large impacts. Learners will use critical thinking skills to evaluate and apply data from a narrative to a scientific selection process, will demonstrate or visualize simulations of some of the effects of a huge... (View More) impact, and will write a point of view narrative. Materials and vocabulary lists, and advanced preparation and procedural tips are included. This is lesson 14 of 19 in Exploring Meteorite Mysteries. (View Less)