Summary Explore the forces on a bike. Science content Physics: Motion and Forces, Newton’s Laws, Gravity (K, 2, 6) Physics: Simple and complex Machines (5) Activities in this lesson Levers: measuring forces Sturdy structures: building and reinforcing shapes Materials materials in the listed activities a bike if possible, bearings in their race from a bike bike wheel gyro - see http://www.exploratorium.edu/snacks/bicycle-wheel-gyro Procedure Set up as stand-alone stations. Grades taught Gr K Gr 1 Gr 2 Gr 3 Gr 4 Gr 5 Gr 6 Gr 7
