Complete Missions on NASA's Station Spacewalk Game

NASA's website is full of great resources for teachers and students. Here is another good example of that. NASA's Station Spacewalk Game is designed for middle school students to learn about the purposes and functions of the International Space Station. In the game students go on Extravehicular Activities modeled after real EVAs performed by astronauts. Station Spacewalk can be played online or downloaded for free as a Windows game or as a Mac game.

Applications for Education
NASA offers a short set of questions that students should be able to answer after attempting the EVAs in Station Spacewalk. The question set isn't terribly deep or complex so you will probably want to expand the questions to match your curriculum.