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In this activity (Page 22 of PDF), learners investigate the evolution of wheat by washing different types of dough with water and comparing the results.

In this activity (Page 25 of PDF), learners investigate the evolution of wheat by creating dough from different flours, observing the samples of dough as they rise, and then baking the dough.

In this collection of demonstrations, learners explore Newton's Laws of Motion.

In this activity, learners explore trebuchet design. Teams of learners construct trebuchets from everyday materials.

In this outdoor activity, learners visit the intertidal zone of a rocky coastal site well populated with marine organisms.

In this activity, learners bake cookies by following different recipes to better understand genetic mutations. Everyone in the group bakes the same type of cookie: chocolate chip.

In this activity, learners explore how engineers have met the challenge of keeping foods, liquids, and other items cool.

In this classic activity, learners investigate natural selection by becoming birds foraging for food on an island.