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This design challenge is an open-ended exploration of linkages, a group of parts connected by hinges, and the types of motion they can create.

In this design challenge activity, learners build a machine out of cardboard that runs smoothly and dependably. Learners must be precise to make sure their component works properly.

In this activity, learners use recycled materials to build a bridge that holds as many potatoes as possible. They investigate weight, height, strength, and measurement as they seek design solutions.

Create an instrument that you don't play--you just listen to it through tubes of various lengths.

Learners explore the endless possibilities of cardboard engineering in this open-ended STEAM activity. Practice being creative by building structures with no glue, only cardboard and scissors.

Build a house you can fit inside, using cardboard tubes.

Cardboard Automata are a playful way to explore simple machine elements while creating a mechanical sculpture.

This activity is a hit for family events and all ages—some will finish in 45 minutes; others can go on for hours.