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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 design challenge, leaners attempt to build a strong structure out of LEGO® bricks that can withstand a 4-foot drop.

In this activity (page 4), learners work in groups to plan and build large structures using recyclable materials they have brought from home.

In this engineering activity, young learners investigate multi-level buildings.

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