This document provides instructions for conducting an experiment to investigate how the time it takes for a paper helicopter to fall is affected by changing variables. Students are asked to make a paper helicopter and then drop it, timing how long it takes to fall. They should record 3 trial times. Then they should cut 1cm off each wing and repeat the timing trials. This process should be repeated, cutting 1cm off the wings each time, until there is not enough wing left. The goal is to see how reducing the wing size affects the falling time.