This is a lesson about detecting ice on the permanently shadowed craters of Mercury and the Moon. Learners will consider what might be in that ice and will examine why the polar regions of Earth, Mercury and the Moon are colder than elsewhere on the... (View More) planets. Activities include small group miming, speaking, drawing, and/or writing. This is the lesson 12 of 12 in the unit, Exploring Ice in the Solar System. (View Less)

This is an activity about critical observation skills. Learners will receive an egg to record its features from various vantage points, illustrating their size, shape, and location. They will then try to identify and recognize the surface features... (View More) of another group's egg. This allows them to look more carefully where variations are not immediately apparent. This is Activity C-7 of Universe at Your Fingertips 2.0: A Collection of Activities and Resources for Teaching Astronomy DVD-ROM, which is available for purchase. (View Less)