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Project Snapshot
Easy and inexpensive to create, the straw rocket can be launched well over 50'!
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Modify the weight at the tip of the rocket and the shape & size of the fins to create the farthest-flinging flyer! A great lesson in momentum, drag, and stability.
Click to expand
Tools and Materials
The Engineering Creation Kit has everything you need for this project and many more from STEM Inventions, or get the supplies in bulk:
Tips and Troubleshooting
If the rocket is colliding with the stick, then...
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Make sure to follow the launch technique that's shown in the video: hold the stick upright, and allow it to flick forward upon release.
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The fins may be too large, or attached at a very crooked angle. Redesign the shape, size, or position.
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You might be using a short rubber band. Longer rubber bands help avoid this collision.
If the rocket is not flying very far, then...
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Stretch out the rubber band more before launching it.
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Aim upward at a 45-degree angle before launching.
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Make sure to follow the launch technique that's shown in the video.
If the rocket is not flying straight, then...
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The fins are probably attached at a crooked angle. Remove them, and carefully reattach them so they are as perfectly straight as possible.