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In this activity, learners make a paper model of a polymer, then make Silly Putty, an actual polymer.

In this engineering activity (page 5 of PDF), young learners investigate how materials and design contribute to the strength of a structure, particularly walls.

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

This activity (on page 2 of the PDF under SciGirls Activity: Luge) is a full inquiry-based challenge related to motion and design optimization.

In this activity, learners create 3D geometric shapes using straws and pipe cleaners.

In this activity related to Newton's Laws of Motion, learners build a boat powered by a propeller in the air.