Principles of Design Worksheets.

Of course if you have an Elements of Art packet, you need a Principles of Design packet as well.  The Principles are not as easy for students to understand as the elements, but I think this packet is pretty straightforward.
I never made a movement worksheet though...and I admit balance, and contrast are dull exercises.  Intermediate grades should have fun with the rest, and I think it would be easy for a substitute too.