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.

The set includes a 31 page, colorful, highly illustrated activity book which explains the science and applications of gears with the following chapters:

• What will we learn?
• A little history of gears
• What is a gear anyway?
• Gear ratio and gearboxes
• Changing direction of rotation
• Transfer of motion
• Big quiz time
• Comments and Solutions
• Award time

Brand:	Tinkering Supplies
Brand Part Number:	4415
Our Part Number:	h4415