A link to Part 2 of the TeachEngineering unit on forces of flight.

This is Part 4 of Teach Engineering's 4-part unit for Grades 5-8 on the forces of flight. It explores drag and how engineers create aircraft designs to reduce the drag force.

This is Part 3 of Teach Engineering's 4-part unit on the forces of flight, developed for grades 5-8.

A related interactive tutorial for Grades 6-12 on the aerodynamic forces of lift and drag. It explores why wing shape alone cannot sustain the lift necessary to keep an airplane aloft.

A 5-minute video that explains how modern sailboats are constructed so that lift and drag are produced by the sails and the keel. These force pairs counteract each other to generate forward movement.