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

Using paper, paper clips, an index card, and tape, teams of learners design flying devices to (1) stay in the air as long as possible and (2) land as close as possible to a given target.

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

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