Grade 3

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 →

People swim for many different reasons—recreation, exercise, or competition. The goal of competitive swimming is to be the fastest in a variety of events featuring different strokes. Kids… More →

Cuttlefish are chameleons of the sea. They can change their skin color to match their surroundings. Beginning readers will discover where cuttlefish live, what they eat, and how they stay… More →

Football is a hard-hitting game. From games in the back yard to high school to the NFL, people love to play and watch football. Kids will learn the history, basic rules, and equipment of… 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 →

The MH-53J Pave Low’s main mission is to pick up and deploy troops behind enemy lines. It flies low to the ground and uses advanced technology to sneak in undetected. Young learners will find More →

The EA-6B Prowler’s primary mission is to provide protection for strike aircraft, ground troops, and ships by jamming enemy radar and communications. Kids will learn the tools Prowlers uses… 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 →

Pop a wheelie! Motorcycles are exciting vehicles used for many purposes from traveling to racing. Young readers will learn about the different parts of a motorcycle and the various kinds of… More →

Scrapers are big earth movers. They have a part that chops up the ground so that the ground can be scraped up and transported. See the whole process unfold in the pages of this introduction… More →

Manta rays are large, graceful ocean animals. They glide through the water on slowly flapping fins. Find out what manta rays look like, how they eat, and how they are able to jump and breach… More →