This case study uses the example of Pluto: how do we determine what a planet is? The lesson compares orbital parameters like semi-major axis, orbital period and orbital resonance of different planets. The material would...

The Active Galaxies pop-up book is a very large rectangular pop-up book with foldouts that was developed for use in classrooms for grades 5 and up and for special needs audiences. Active galaxies, a major scientific...

This program allows educators to borrow meteorite samples and provides a teacher's guide with activities and a slide set to support lessons on the earliest history of the solar system and meteorite impacts on Earth....

This product is the teachers guide to a program that allows educators to borrow lunar samples and provides activities and a slide set to support lessons on lunar exploration, geology and history. Materials are available...

This educator's guide with activities promotes problem solving, communication skills and teamwork. Topics include lunar geology and regolith, distance to the moon, Apollo landing sites, and life support systems. Some of...