Summary Build a project from wood, using a saw, hammer and nails, screws etc. Discuss how each tool is a simple machine. Science content Physics: Simple and complex Machines (5) Materials pieces of wood saws, hammer and nails, screws and screwdriver, other wood tools available Procedure Students build a wooden project. We built a perch for chickens. As the pieces of wood are cut and attached together, discuss how each tool is a simple machine, and how it makes the job possible. Saw is a wedge. Hammer is a lever. Nails are wedges. Screw is an inclined plane. Screw driver is a wheel and axle. Grades taught Gr 3 Gr 5
