Hi Everyone. Although it's later than I intended, at this link you can get a Word doc with copies of everything we did at the workshop. Hope it's useful!
For those of you who have access to Discovery Education / United Streaming, there is a short, 2 minute snippet called "Gravity & Inertia" that is part of "Spin Around the Solar System: How the Solar System Works". It does a pretty good job of describing what you need for an orbit.
Very comprehensive database with detailed, written descriptions of the planets (and moons) that can also be used for a comparative planetology data gathering activity of some sort.
This is the on-line course that all materials are open even to unregistered students. If you would like more info about the on-line MEd in Earth Science, let me know