Also known as tropical cyclones, hurricanes produce extremely high winds and torrential rain. Lea...

Levers are simple machines that make work easier. There are three different classes of levers. St...

Wedges are simple machines used to split, lift, or hold an object in place. Children will discove...

Have you ever seen a big truck on the highway? That is called a big rig. It transports many of th...

Most children ride these to school every day. Now they have an opportunity to learn how they work...

Gravity keeps people grounded and prevents them from floating away into space! Young readers will...

Ramps are simple machines used for work and play. Workers use them for easy loading and unloading...

'Simple text and full color photographs introduce beginning readers to color. Developed by litera...

People get energy from food and use energy to exercise. This book teaches young readers about che...

We use wheels and axles several times every day. Young readers will learn how a wheel and axle wo...

The nervous system is a complex network of nerves that allows you to experience the world around ...

Gases, liquids, and solids are all matter. Everything that has mass and takes up space is matter....

Winter winds blow snow at 35 miles per hour or more for at least three hours during a blizzard! Y...

Catch a ride to learning with this basic introduction to taxis. Simple text supports relative pho...

Wedges are simple machines used to split, lift, or hold an object in place. Children will discove...

Ramps are simple machines used for work and play. Workers use them for easy loading and unloading...

The planets in the solar system are in constant motion as they orbit the sun. Motion is all aroun...

We use wheels and axles several times every day. Young readers will learn how a wheel and axle wo...

The human body produces sweat to keep itself at a healthy temperature of 98.6 degrees Fahrenheit....

Skid steer loaders are highly maneuverable and can do a variety of tasks. Learn this and more in ...

Levers are simple machines that make work easier. There are three different classes of levers. St...

Why is a small piece of metal heavier than a large piece of foam? Why does wood float in water? T...

Hurricane winds spin around a central point called an eye. A hurricanes eye usually has calm weat...

Pulleys are simple machines used to lift and move loads. Builders use pulley systems to lift tool...

What is an ambulances job? Find out in this basic introduction to a lifesaving emergency vehicle....

'Simple text and full color photographs introduce beginning readers to color. Developed by litera...

Movements called vibrations produce sound. Small vibrations make a quiet sound. Big vibrations ma...

Screws are simple machines used for many different jobs. The concept of a screw is used in snow b...

Screws are simple machines used for many different jobs. The concept of a screw is used in snow b...

Why do police cars patrol the streets? Police cars help police officers fight crime and stop peop...

Need a reading lift? This book will pick up young readers and take them to an understanding of to...

Winter winds blow snow at 35 miles per hour or more for at least three hours during a blizzard! Y...

Pulleys are simple machines used to lift and move loads. Builders use pulley systems to lift tool...