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In this activity, learners use the design thinking process to design and build their own aqueduct, or water bridge.

In this activity, learners construct speedy vehicles made out of paper plates and powered by twisted rubber bands.

In this activity (on page 2 of PDF), learners create a low-tech refrigerator that requires no electricity to keep food from spoiling.

Learners follow directions to construct a solar oven that really cooks! The solar oven uses aluminum foil to reflect sunlight into a cooking chamber, which is painted black.

In this activity, learners work in groups to design a parachute out of household items that keeps an egg secure when dropped from a certain height.