Twist, Dig, and Drill


Book Description

Provides examples showing how screws are simple machines that make joining things together and moving, easier.




Twist, Dig, and Drill


Book Description

Discusses what a screw is and how it is used.







Modern Drilling Practice


Book Description




Screws to the Rescue


Book Description

Explains what a screw is and how it is used. Also presents examples of everyday items that screws hold together.




Explore Simple Machines!


Book Description

From zippers to the Pyramids, rolling pins to catapults, we are surrounded by simple machines. This book will amaze kids with the ingenuity they already possess and inspire them to look differently at the objects they use everyday. Explore Simple Machines! With 25 Great Projects introduces kids to the concept of “mechanical advantage,” and harnesses kid-power by inviting them to build machines of their own design. It opens their eyes to the diversity of machines in their lives, and sparks the imagination with challenge, humor, and achievable projects. Explore Simple Machines! dedicates a chapter to each of the six simple machines that were identified centuries ago: levers, inclined planes, pulleys, screws, wedges, and wheels & axles. Kids will develop analytical skills as they figure out where force is applied and what kind of work it generates.




Pull, Lift, and Lower


Book Description

Describes many different kinds, uses, and benefits of pulleys. Provides examples of pulleys by showing a flagpole, a crane, an elevator and window blinds.




Tires, Spokes, and Sprockets


Book Description

Discusses wheels and axles, what they are and how they are used.




Cut, Chop, and Stop


Book Description

Discusses what wedges are and how they are used.




Scoop, Seesaw, and Raise


Book Description

Provides examples to describe levers as simple machines used to lift, push, or move a load. Includes an activity.