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

In this activity, learners simulate the process of DNA fingerprinting by using electricity to separate colored dyes.

In this activity, learners build scaled-down structures and cantilevers in a series of "building out" challenges with bamboo skewers and tape.

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

In this activity, learners build large-scale structures and cantilevers in a series of "building out" challenges with garden poles and tape.