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Straw Rockets. Testable Question. Will changing the diameter of straws, but not the length, cause a blown projectile to fly farther? . Testable Hypothesis . If the diameter of the straws are changed then there will be no measureable difference. Materials . 5 straws of varying diameter
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Testable Question Will changing the diameter of straws, but not the length, cause a blown projectile to fly farther?
Testable Hypothesis • If the diameter of the straws are changed then there will be no measureable difference.
Materials • 5 straws of varying diameter • Meter stick • Paperclip • Play Dough 1 3 2 4 5
Set Up • Set up meter stick on floor and one partner fills lungs to capacity and launches the Play Dough-and-paperclip projectile out of each of the straws for 3 trials
Results Straw 1 > Straw 2 > Straw 3 > Straw 4 > Straw 5 There is a subtle, yet distinguishable, increase in flight with the increase in diameter .