Grades 3 - 7

Screws are simple machines used for many different jobs. The concept of a screw is used in snow blowers, drills, and presses. Kids will learn how screws work and how they are used in complex machines. More →

Basketball is one of the most popular sports in the world. Players must dribble, jump, defend, and shoot their way to victory. Children will learn the history, rules, and equipment needed to… More →

People of all ages love to play and watch the game of baseball. It has been a part of American history for around 150 years. Young readers learn the history of baseball, learn how the game is More →

Ramps are simple machines used for work and play. Workers use them for easy loading and unloading. Skateboarders use them to do tricks. Readers will learn how ramps make work easier and how… More →

Levers are simple machines that make work easier. There are three different classes of levers. Students will learn what levers are, how the classes of levers differ, and how the construction… More →

We use wheels and axles several times every day. Young readers will learn how a wheel and axle work together, how they make work easier, and how they are used in larger, complex machines. More →

Wedges are simple machines used to split, lift, or hold an object in place. Children will discover how wedges perform jobs for people and how they make everyday life easier. More →

Do you know how many bones are in your body? Get under your skin in this book. Young readers will discover how bones fit together, how they move, and how they protect other parts of the body. More →

Muscles help us lift, push, pull, and move. Eager readers will explore the different kinds of muscles, how their muscles work, and how to take care of them. More →

Sprint cars are small, speedy race cars that can be raced on paved or dirt tracks. They can move at over 140 miles per hour! Readers will explore the history of these compact, high-powered… More →

Some dragsters can move at speeds over 300 miles per hour! These race cars race one-on-one on straight tracks. Students will discover the history of dragsters, the technology behind their… More →

Grab your gear and get ready to explore! There are many different ways to explore what lies beneath Earth’s surface. Young readers will learn about these techniques, the history of caving,… More →