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Balloon Rocket Race

Send a balloon zooming along a string and discover how air pushes it forward.

Grade 2ExperimentBuildScienceEngineeringPhysicsEngineeringMeasurementBeginner25 to 40 min7 materialsAdult supervision required

What you'll learn

  • Explain that escaping air pushes the balloon the other way
  • Measure how far a rocket goes
  • Test a small and a big balloon fairly

Objective

Build a balloon rocket and test how the size of the balloon changes how far it travels.

STEM concepts

Forces: pushAction and reactionFair testDistance
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Materials and safety
Step-by-step instructions
Prediction, test sheet and results
Why does it work, challenge and project report

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