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Balsa Towers
Pratt School of Engineering, Duke UniversityAdd to list DetailsLearners work in groups to design and build a tower out of balsa wood. As a motivator, they can compete to build a tower with the highest strength-to-weight ratio. Learners draw structurally sound...
What Trickles Down?
Pratt School of Engineering, Duke UniversityAdd to list DetailsLearners design their own experiment to explore the permeability of different materials such as soil, sand, gravel, and marbles. They will also be introduced to the basic concepts of building...
Sliding and Stuttering
Pratt School of Engineering, Duke UniversityAdd to list DetailsLearners use a spring scale to drag an object such as a ceramic coffee cup along a table top or the floor. The spring scale allows them to measure the frictional force that exists between the...