This is an activity for student to practice exponent rules (Product of Powers, Power of a Power, Power of a Product, Quotient Powers, and Negative Exponents).
There are 16 questions where students use area and volume along with exponent rules to simplify. Once complete, the teacher gives the students the color code key (self-checking!). Students color the problems according to the key, cut and link the problems together to make a chain (or glue together to make one long strip).
I've included both a PDF and a Word version. I always check for mistakes but may have overlooked something. Plus, you can modify and adapt to your students needs. (Also included is a font I created and used in the document.)