Grade 2

Sponges can be almost any color and look like tubes, fans, vases, cups, or barrels. Most sponges stay in one place all their lives! Float along with a diversity of sponges and explore where… More →

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 →

Pulleys are simple machines used to lift and move loads. Builders use pulley systems to lift tools or materials. Elevators use pulleys to move up and down. Kids will learn how pulleys make… 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 →

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 →

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 →

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 →

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 →

Bear cubs are born in a den while their mother bear is in hibernation. Young students will learn how bear cubs hunt for berries and climb trees to escape danger. More →