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This hands-on activity shows you how to build basic architectural shapes out of toothpicks and gumdrops.

In this activity, learners design and build their own parachute using household materials with the goal of landing their passenger safely on a target.

In this activity, learners will use household items to design and build an elevator that will carry 2 passengers to a height of 16 inches...or higher!

In this activity, learners will explore what a constellation is and make their own.

In this activity learners will build roller coasters and test them using small balls or marbles.

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.

In this activity, learners are challenged to design and build a miniature tree house in a potted plant. This activity uses engineering concepts to encourage creativity.

Learners design, build, and test models of "dragon boats" made from up to three milk cartons.

In this activity, learners will engineer their own weather vane. This activity includes step-by-step instructions with pictures and a "What's Happening?" section explaining how the activity worked.

In this activity, learners create a sound visualizer from common materials to help see the vibrations created by sound. Sounds from a tone generator make salt dance on a vibrating balloon membrane.

Learners explore the Bernoulli effect by building an airfoil (airplane wing) and making it fly.

In this activity, learners are challenged to create a parachute using easily sourced materials in order to transport a LEGO figure safely to the ground.

In this activity, learners are challenged to design a wind-powered car using only a handful of household materials.

In this activity, learners construct hail-proof houses using recycled materials to discuss storm readiness and safety.

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

In this experiment, learners design and build a model room in a shoebox and furnish it with tiny furniture.