The Kids' Book of Simple Machines: Cool Projects & Activities that Make Science Fun!

Pull, Lift, and Lower: A Book About Pulleys (Amazing Science: Simple Machines)

Simple Machines (Starting with Science)

Explore Simple Machines!: With 25 Great Projects (Explore Your World)

How Do You Lift a Lion? (Wells of Knowledge Science Series)

Simple Machines (Let's-Read-and-Find-Out Science 2)

Roll, Slope, and Slide: A Book About Ramps (Amazing Science: Simple Machines)

Simple Story of the 3 Pigs and the Scientific Wolf

Scoop, Seesaw, and Raise: A Book About Levers (Amazing Science: Simple Machines)

K'NEX Education - Intro to Simple Machines: Levers and Pulleys Set – 178 Pieces – For Grades 3-5 – Construction Education Toy

Simple Machines, Set of 5

Pull, Lift, and Lower: A Book About Pulleys (Amazing Science: Simple Machines)

Simple Machines (Starting with Science)

Explore Simple Machines!: With 25 Great Projects (Explore Your World)

How Do You Lift a Lion? (Wells of Knowledge Science Series)

Simple Machines (Let's-Read-and-Find-Out Science 2)

Roll, Slope, and Slide: A Book About Ramps (Amazing Science: Simple Machines)

Simple Story of the 3 Pigs and the Scientific Wolf

Scoop, Seesaw, and Raise: A Book About Levers (Amazing Science: Simple Machines)

K'NEX Education - Intro to Simple Machines: Levers and Pulleys Set – 178 Pieces – For Grades 3-5 – Construction Education Toy

Simple Machines, Set of 5