Elenco Mechanical Science Gears Set

Learn how gears can easily reduce or increase speed, change Force, or transfer motion from one position to another. Build 6 working models, a gearbox, a hand drill, an egg beater, a helicopter, a rotating sign post and a high speed fan. A 36 page activity book is included with innovative experiments and detailed explanation of the different technological principles applied! Booklet with detailed building instructions also included. .Ages 6 and up.