Odds and Ends
Sandwich Explorer by Mitra Farmand
How to Destroy the Earth with a Coffee Can. It requires use of vacuum energy
Canadian Space Mission - as reported in the Freaking News
A Call for More Scientific Truth in Product Warning Labels by Susan Hewitt and Edward Subitzky
The Allentown School District Planetarium (in Pennsylvania) has space quizzes. Here is a list of the fun titles of teams.