Bill Nye: Simple Machines video sheet. Very easy for my 7th grade EC classes, it's multiple choice answers (1-9), (10-12) are short response.
This way they get a chance to watch the video and not spend all of the time on reading and answering the follow along questions.
Some of the things included are...
Includes the 6 main simple machines
Wheel and axle
Hard time finding the video to stream try looking on dailymotion