"Waste too much time playing Asteroids in your youth? Perhaps it was worthwhile after all! This is a quirky assessment/quiz tool where players answer questions by playing Asteroids. Add questions by typing, uploading from a spreadsheet, or import from Quizlet."
This is a fabulous and fascinating YouTube channel where all sorts of science ideas are explored and explained in a friendly and engaging way. The topics range from near Earth Asteroid to dung beetles. The videos often cover science stories that are currently in the news.
http://ictmagic.wikispaces.com/Science
"In this scenario, students will become researchers and problem solvers in order to design a plan to save the Earth from a hypothetical asteroid strike."