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In this activity, learners perform an experiment that replicates the dilemma faced by birds in acquiring food from a confined area. Learners are given a variety of objects to use as “tools” and...

In this online activity, learners create monsters and see how they survived when released into the wild. Learners discover that organisms adapt to their environments in different ways in order to...

Professor John Endler traveled to Trinidad in the 1970s to study wild guppies. In this activity, learners take part in an online simulation of Endler's work. Learners collect data, formulate a...

This activity provides a hands-on experience with a scale model, a relatively high viscosity fluid, and feeding behaviors. Learners attempt to capture "food" (a lentil) with a feeding...

In this simulation of natural selection, learners use binder clips in three different sizes to represent the diversity of beak sizes in a bird population. They use the "beaks" to collect...

In this engineering design challenge, learners make a bird and then control its flight with attached strings. As learners work their way through the design process, they can upload descriptions and...

In this activity (p.7-8 of PDF), learners examine fossil formation. Learners investigate the stages in the formation and finding of fossils: erosion, sedimentation, creatures dying and being buried...

In this online activity exploring our perception of "cuteness," learners adjust various factors (like pupil size or length of limbs) on a face, a cat, and a hammer. Learners alter the...