1) Roseanne and D'Asia were asked to design and create a paper airplane that would stay in the
air for as long as possible. They began by folding printer paper into four different planes. They
then tested the flying times of the planes by throwing them and timing their flights with a
stopwatch. They compared results and selected the plane with the longest time as their best
design
Which is their independent variable?
A) the time the planes stayed in the air
C) the type of paper used
B) the design of the plane
D) the number of times they threw