Slingshot Straw Rockets - Engineering Projects for Kids

Simple and inexpensive to build. The slingshot rocket may take a little practice to use, but the payoff is well worth it as you launch it over 50'!

You can find the lesson plan, 1-page project sheet, and more project ideas at STEM-Inventions.com

Materials:

• Large straws
• Rubber band
• Craft stick
• Paper fastener
• Card stock
• Masking tape (Dispenser)
• Pencil eraser

When you make a purchase through these links, I may earn an affiliate commission at zero cost to you.

If the rocket is colliding with the stick, then...

• 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.
• The fins may be too large, or attached at a very crooked angle. Redesign the shape, size, or position.
• You might be using a short rubber band. Longer rubber bands help avoid this collision.

If the rocket is not flying very far, then...

• Stretch out the rubber band more before launching it.
• Aim upward at a 45-degree angle before launching.
• Make sure to follow the launch technique that's shown in the video.

If the rocket is not flying straight, then...

• The fins are probably attached at a crooked angle. Remove them, and carefully reattach them so they are as perfectly straight as possible.