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In this Engineering Design Challenge activity, learners will use balloons to investigate how a multi-stage rocket, like that used in the Interstellar Boundary Explorer (IBEX) mission, can propel a sat

In this design challenge activity, learners use two helium-filled balloons to build a blimp that can travel in a straight path across the room.

Experiment with force and pressure by building a balloon rocket. When launched, the balloon will run a track wherever you place the string.