Science Park Gear Train is basically a rotatable machine component that has cogs or cut teeth which is attached with other toothed part along with mesh to transfer torque. When two or more gears work in association with each other consistently, then transmission occurs. As its result, gear ratio is achieved. Geared system is capable of altering torque, speed and direction of a power source. This equipment is suitable for students of 6th, 7th and 8th standards.