This is a physics lab designed to teach students about parallel vs. series circuits. Rather than telling students how to create parallel vs. series circuits in a step-by-step manner, students conduct an open-ended investigation leading them to build a series and parallel circuit on their own. Works best in small groups.
Materials per group:
8 alligator clips
3 incandescent flashlight bulbs
3 bulb holders
2 D cell battery holders connected in series
2 D cell batteries
(I purchased most of my supplies through Ward's Science by purchasing multiple Create-a-circuit kits #470039-950)