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In this activity on page 3 of the PDF, learners visualize the relative size and structural differences between microbes that have the potential to cause disease.

In this engineering activity (page 5 of PDF), young learners investigate how materials and design contribute to the strength of a structure, particularly walls.

In this hands-on activity, learners investigate the functional design of leaves on a tree.

In this design challenge activity, learners invent an emergency shelter that can fit a person and is sturdy and quick to build.