Blastoff! Readers Level 4

What are simple machines? Young learners find out about the six simple machines in this series. They are presented with the basic physics concepts behind simple machines, the ways simple… 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 →

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 →

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 →

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 →

Hurricane winds spin around a central point called an eye. A hurricane’s eye usually has calm weather and clear skies. Eager readers will discover how hurricanes form, move, and damage tropical areas. More →

Roads become slick when freezing rain falls. Drivers can easily lose control of their vehicles and crash into each other. This book introduces children to unpredictable ice storms by… More →

Underwater earthquakes, volcanoes, and mudslides can cause tsunami waves that reach land and wreak havoc. Children will learn how tsunamis develop, how they are detected, and their… More →

Earth is capable of catastrophic weather phenomena such as hurricanes at sea and droughts and tornadoes on land. Follow the paths of several different extreme weather events from cause to… More →

Winter winds blow snow at 35 miles per hour or more for at least three hours during a blizzard! Young readers will learn how blizzards form and why blizzard conditions temporarily shut down… More →

The Midwestern United States was nicknamed “The Dust Bowl” in the 1930s because years of drought devastated the region. This book teaches why droughts happen, how they affect living things,… More →

A firefly is an insect that can make light by mixing chemicals inside its body! This book introduces children to light sources, light rays, and the scientific concept of reflection. More →