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

In this activity, learners build bridges and cantilevers in a series of "building out" challenges with straws and pins.

In this activity, learners explore the "nuts and bolts" of gene chips.

In this activity, learners investigate the relative growth of lengths, areas, and volumes as cylinders are scaled up.

In this web-based activity, learners try to figure out who in an online chat room has their matching puzzle piece.