Here is a very handy set of short video clips to use in the classroom when getting kids to think about what scientists and engineers do. There is a huge variety of STEM careers represented, from food scientist to motorcycle engineer to game designer. Just as importantly, there is lots of ethnic diversity represented as well. Probably best for middle school aged students.
CNC Machine A Robot Roving Eye Part II
CNC Machining an Arduino-Powered Robot Roving Eye.