This exciting title shows readers how important volume is to flying a hot air balloon properly. Explore the history of the hot air balloon and learn how these eye-catching balloons fly! For hot air balloons to fly properly, passengers have to calculate the volume of the basket to see which balloon will be able to carry them. With vibrant images, easy-to-read text, simple practice problems, and clear mathematical diagrams, this title will engage readers while simplifying important mathematical formulas and STEM themes.
The need for speed is the motivating factor in this engaging book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther.
Climb aboard for a journey into the world of trains! In this fascinating nonfiction title, readers learn about the history of trains, the different uses for them, and the different types and parts including freight cars, box cars, passenger cars, and the caboose. With detailed photos, informative text, and intriguing facts, this book will have readers delighted from cover to cover!
In this exciting and engaging nonfiction book, readers learn about the Wright Brothers, the history of aviation, how air travel has changed the way people work and live, and the important parts that make the plane fly! Using informational text, vibrant photos, an interesting timeline, and intriguing facts, this book will have readers wanting to learn everything they can about airplanes!
Let's take a spin in the fascinating world of cars! In this engaging nonfiction title, readers learn about cars of all kinds--from the Model T roadster to electronic cars--through automobile history, the innovative way automobiles changed the way people travel, and the parts cars need in order to work properly to ensure automobile safety and keep pollution down. With detailed images and diagrams, informational text, and compelling facts, readers will want to learn everything they can about cars!