The Compound Machine

I ran across an interesting website today and tried one of the activities called "The Compound Machine". By answering some simple questions of physics, the player helps the robot fix the toilet.

The questions, of course, are piece of cake for all my college students. However, I still consider it as a potential English assignment that students may be interested in. At the end of the game, students can print their scores and acquire quite a few useful English words.