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Working in teams of four, learners build tetrahedral kites following specific instructions and using specific materials.

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

Learners investigate weight by building a spring scale. They observe and record how it responds to objects with different masses.

In this activity, learners explore the concept of friction and how ball bearings reduce friction.

In this activity, learners model directed evolution by making paper fly. Learners construct and fly paper airplanes.