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In this activity (Page 30 of PDF), learners investigate the evolution of wheat by conducting sedimentation tests on different flours.

$5 - $10 per group Ages 8 - adult 10 to 30 minutes
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In this activity, learners model directed evolution by making paper fly. Learners construct and fly paper airplanes.

$1 - $5 per group Ages 8 - 18 45 to 60 minutes