Huge blades, giant tracks, and powerful engines enable these colossal bulldozers to wipe out anything in their paths. They can even move 90 cubic yards of material per pass! Plow through more on these amazing machines in this title for beginning readers.

Boom and jib. These are two crane parts with fun names. They are the long arms of the machine, moving to lift heavy materials to skyscraper heights. In this low-level read, children will learn how the many parts of a crane work together to build towering structures.

Much of our understanding of ancient plants and animals comes from the fossil record. Big or small, fossils offer images of life on Earth from billions of years ago! Young paleontologists will solidify their interests by learning how to study fossils in this fascinating title.

As the tallest buildings on Earth, skyscrapers tower over cities! These massive buildings house offices, shops, and apartments in cities around the world. This title introduces readers to the building methods, materials, and science that lets these towers climb high into the sky.

Strap into a harness and prepare for a wild ride! Roller coasters offer steep hills, wide turns, and incredible speeds. Curious readers will find information on the history of roller coasters, the materials used to build them, and the science behind the speed.

Bridges take cars, trains, and people across rivers, lakes, and canyons. This introductory title covers the materials used in bridge construction, the types of bridges, and the scientific concepts that make bridges work.

Scientists categorize rocks into three different groups depending on how the rock was formed. Humans have used rocks from all groups as tools and in construction for thousands of years. Readers will be amazed to learn how heat, pressure, magma, and even water bring minerals together to form these useful compounds in this elementary title.