This is a detailed historical lesson about comets, distant icy worlds often visible to observers on Earth. Learners will consider the essential question, "What are comets?" They will practice observation skills as they enact a story of comets... (View More) traveling through the solar system and examine images of comets and the current space missions exploring them. This is lesson 10 of 12 in the unit, Exploring Ice in the Solar System. (View Less)

This is a lesson about the distance to Saturn. Learners will use simple props to create a playground model for size and distance for the Sun, Earth, and Saturn - then walk on their scale model to Saturn. Writing activities engage students in... (View More) reflecting on experience and in comparing and contrasting. This is lesson 4 of 12 in the Mission to Saturn Educators Guide, Reading Writing Rings, for grades 3-4. (View Less)