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This activity provides instructions for making an aircraft that can really fly using a straw and paper hoops!

In this activity, learners engineer a flying glider using paper hoops and a drinking straw.

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 explore force and motion by constructing cardboard cars that are propelled by balloons.

In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater.

In this activity, learners build water-propelled engines from soft drink cans.