In the early 1900s, a skull was found in England that many believed to be the "missing link." The strange prehistoric human skull "discovered" in England in 1911 was ultimately proven to be a hoax. The perpetrator's identity and motives, however, remain mysteries, which this book examines.
This book tells the story behind the developments for people to communicate with one another from across the street to across the country.
Although Comstock Lode made many people near Virginia City rich, it left a torn and tattered town. The lesson of the Comstock Lode legacy is that what people have done in the past affects people today. And what we do today can affect the world tomorrow.
Describes the deepest part of the ocean, called the abyss, and explains how, with new equipment and technology, humans are beginning to learn more about the abyss and the creatures who live there.
Describes how a school bus carrying twenty children became stranded during a blizzard in Towner, Colorado, in 1931.
Explains what early civilizations believed about natural disasters; highlights notable eruptions, earthquakes, fires, floods, droughts, famines, and diseases, as well as two noted military failures; and recounts the end of the ancient world.
Presents a history of aeronautical sports, including ballooning, skydiving, airplane racing, flying circuses, and military dogfights.
Ben finds himself in charge as record floodwaters destroy Johnstown. This book is about a family who survives the Johnstown flood of 1889.
Tops have been spinning for thousands of years. Learn about tops, yo-yos, and other fascinating spinning toys as well as how to make them.
The invention of the wheel changed the way we moved and made exciting toys possible for children. This book discusses the history, creativity, and fascination of toys made with wheels.
This story describes what has happened to the elephant's ancestors, Mastodons and the mammoths, and what could happen to the elephant if it is unable to adapt to life changes.
Provides a history of kites and kite making, and offers step-by-step instructions for making a wind sock and different types of two- and three-stick kites.
Provides a history of balls and ball games and offers instructions for playing different ball games and for making balls from cloth, felt, and rubber bands.
Through engaging text and dynamic infographics, charts, timelines, photos and levelling control this high interest title describes the history, features, and future of sportbikes.
Archaeologists are like detectives. They find objects from the past and treat them as clues to understanding what life was like long ago. This title aims to create meaningful connections between the scientific concepts readers learn in the classroom and how they are applied in the real world by archaeologists searching for answers.
An in-depth look at the design and engineering of massive scientific telescopes. Addresses the obstacles of construction, the impact on society, and the science of engineering such superstructures.
A look at some of the most amazing elevators in the world. Addresses the obstacles of construction, the impact on society, and the science of engineering such superstructures.
In The Internet, readers will learn about the science and technology behind the development of the Internet. Vibrant, full-color photos and carefully leveled text will engage readers as they learn more about the challenges overcome to create the Internet and how this super science feat continues to advance technology and communication.
In The First Flight, readers will learn about the science and technology the Wright brothers used to develop the first powered flight. Vibrant, full-color photos and carefully leveled text will engage readers as they learn about the challenges the brothers had to overcome to get a flying machine in the air and how this super science feat continues to help us develop airplanes.
In The Moon Landing, readers will learn about the science and technology behind the first trip to the moon. Vibrant, full-color photos and carefully leveled text will engage readers as they learn about the challenges the astronauts faced and the triumph of the landing.
An elementary exploration of stag-moose, focusing on fossil evidence that helps explain how their wide antlers and sharp hooves helped these beasts adapt to the last Ice Age.
An elementary exploration of saber-toothed cats, focusing on fossil evidence that helps explain how their sharp, curved teeth and short legs helped these beasts adapt to the last Ice Age.
An elementary exploration of mammoths, focusing on fossil evidence that helps explain how their big tusks and shaggy fur helped these plant-eating beasts adapt to the last Ice Age.
A helpful guide for understanding the mathematical concepts and real-world applications of measurements, including classroom tips, common terms such as volume, and exercises to encourage hands-on practice.
A narration of the origins, advancements, and future of the formal sciences, including mathematics and computer science, and the ways in which scientists utilize the scientific method to explore questions.
