Looks at seven natural wonders found in North America, including Niagara Falls, the Grand Canyon, and Yellowstone National Park.

Looks at seven natural wonders of Central and South America, including Angel Falls, the Galapagos Islands, and the Amazon River.

In every age, science and technology have advanced human civilization. From architecture to engineering, medicine to transportation, humans have invented extraordinary wonders. Transportation technology has seen significant changes over the centuries. Ancient people traveled on foot and on the backs of animals. People invented wheels and sailing ships, which helped them travel farther and carry larger loads. Fast forward to modern cars, subways, and airplanes and we’ll find that even the sky’s not the limit. In the twenty-first century, people are planning tourist flights into space. In this book, we’ll explore seven wonders of transportation. These wonders include roads and mass transit systems, including the ancient Silk Road, the London Underground, and the U.S. Interstate Highway System. The wonders also include vehicles such as bicycles, airplanes, spaceships, and the glorious ocean liner Queen Elizabeth II. The newest vehicles are “supergreen” cars, which save energy and help the environment. From the basic to the cutting edge, we’ll learn where transportation has been and where it’s headed.

Explores the seven wonders of communication, from the first language to the World Wide Web and why these communication advancements are important.

Describes seven major developments in medicine that made possible major changes in preventing and treating diseases and improving health, including vaccination against smallpox, the use of insulin for diabetes, and heart transplants.

Have you ever wondered how stars are born? Or what happens inside a black hole? Or how to safely view a solar eclipse? This book tells you the answers—and much more. See what astronomers and space scientists have discovered about the amazing wonders of the stars.

Describes seven phenomena about the outer planets of the solar system and their moons, including the great red spot of Jupiter and the underground sea of Europa, and explains how these phenomena occurred.