Experiment Design Analysis - Skateboard
At the skate park, this one obnoxious guy is boasting that his board has the least rolling resistance (the lowest wheel friction) of any board there. You know that your triple-platinum plated polymer p0wer g1iderz are the best.
To show everyone what a twerp this guy is, you set up an experiment with his board, your board and two other boards.
Just in case Mr. Rick might give you some extra credit points, you decide to use the lab report format to write-up a rough draft of the Skateboard experiment.