Balloon Rocket Race

Create a simple balloon rocket and race it across a string! This activity introduces basic principles of physics in a fun and engaging way.

STEMPhysical
AgeAges 5–12
Duration30 min
DifficultyMedium
CostLow
LocationIndoor

Educational Value

Introduces concepts of physics, such as force and motion.

Materials Needed

Prep progress

Step-by-Step Instructions

  1. 1

    Cut a length of string and tie it between two sturdy objects (like chairs) ensuring it is taut.

  2. 2

    Thread a straw onto the string and secure it with tape so it can slide easily.

  3. 3

    Inflate the balloon without tying it and tape it to the straw.

  4. 4

    Let go of the balloon and watch it race along the string.

  5. 5

    Experiment with different balloon sizes and lengths of string to see how it affects the speed.

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