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This simple construction activity teaches the importance of architectural structure. Learners build and test designs for a paper "doghouse" strong enough to hold the weight of a jumbo dog biscuit.

In this activity, learners create a colorful bookmark using a super thin layer of nail polish on water. Learners discover that a thin film creates iridescent, rainbow colors.

In this engineering activity, learners explore simple machines and then build cardboard automata using cams.

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