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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 use tinfoil to build and test their own boats - which designs will float, and which will sink?

In this activity, learners will predict the size of a giant scale model of a comb or other rectangular object, then make one. If you tripled the size of a dollar bill, could you sit on it?

In this activity, learners use information gathered from a variety of sources to design and make their own insect.

This fun and simple hands-on astronomy activity lets learners build a scale model of the universe with little more than adding machine tape.

In this activity, learners build bridges using paper and explore how much weight each bridge design can support.

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.

This is a classic exercise for visualizing the scale of the Solar System.

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

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