Balloon Rocketry

based on 12 ratings
Author: Judee Shipman

Rockets work by way of jet propulsion. The principle behind it is based on Newton's Third Law of Motion: For every action there is an equal and opposite reaction. When a rocket blows out gas at high speed, the rocket is pushed in the opposite direction. Balloon rockets follow the same principles, but in this case the gas is the air inside the balloon. In this project you'll build balloon rocket. Then you can design a technological improvement, or discover a new practical application for balloon rockets.


How do you make a rocket out of a balloon?


  • Computer with Internet access
  • Color printer
  • Digital camera
  • Typical office/hobby/hardware/craft supplies (paper, poster board, glue, etc.)
  • One long balloon
  • Fifteen feet of kite string
  • Clothespin
  • Plastic Straw
  • Tape


  1. Read overview of relevant topics (see bibliography below)
  2. Address all of the terms and research questions mentioned here.
  3. Search and print out interesting images relevant to your topic.
  4. Take photographs throughout the course of the experiment.
  5. Create several balloon rockets from existing designs.
  6. Think of the ways in which existing designs could be improved upon.
  7. Design and build a new or improved balloon rocket.
  8. Devise a new practical application for balloon rockets.
  9. Write a detailed report.
  10. Include photos, diagrams, and demonstrations in your science fair display.


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