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Learners use engineering design principles to construct and test a fully solar-powered car. Solar car kits usually include a photovoltaic cell and motor; some include a chassis as well.

Learners determine the surface area and volume of two identical boxes, and then figure out the dimensions of a cubical box with the same volume.

Historically, sea floor mapping (bathymetry) was done by soundings.

Each learner chews a piece of gum until it loses its flavor, and then leaves the gum to dry for several days.