In Belts & Gears, inhabitants of Mammoth Island are getting ready for their annual fair and are determined to make this year's event better than ever. Olive, a young Islander enlists the help of a visiting inventor to design exciting new rides and together they decide that using belts and gears will help make the fair a success. While belts and gears don't increase the amount of force applied, they can transfer the force to change direction or speed. And this results in some terrific new rides!

Teacher's guide available under Additional info tag. Also as Streaming on Learn360 under the title "Fun at the Fair"

Based on the Dorling Kindersley book "The Way Things Work" by David Macaulay.