We found 27 resources with the concept compound machines
Fifth graders read selected pages from their science text and explain forces affected by wheels and axles. They read and discover that gears transfer forces and that gear combinations relate to compound machines.
Fifth graders discuss commercials they remember seeing, and reasons they remember them. They write and perform their own television commercials designed to "sell" a compound machine.
Eighth graders apply what they have learned to develop an understanding of compound machines. They demonstrate this understanding by scavenging across their school campus looking for devices that encompass compound machines to make the...