This is a great way to have students go beyond just what it means to "recycle"...but how to sort through materials to correctly place in distinct recycle bins. Plastic, paper, glass, metal. These can be printed in color on cardstock (and laminated) to use at a center...or you can simply print it in black and white for each child to sort and glue on construction paper.
Check out my Reducing activity:
Also check out my Reusing activity: