"From the time of Vikings to modern-day military, humans have long warred at sea. This book introduces readers to destroyers, the ultimate warships of today. Readers will learn how these monstrous machines are engineered, the weapons they carry, and how their radar systems function. Complex processes and principles are explained in accessible language that satiates readers curiosity. Vivid photographs allow readers to explore these high-tech crafts...

The realms of sky and sea collide on the decks of aircraft carriers. From landing to takeoff, it all happens on these incredible crafts. Readers will be amazed at detailed photographs of these massive machines, and will discover how these aquatic air bases are engineered and the materials they are made with. The anatomy of these crafts, from control rooms to runways, will transfix curious readers. They'll learn about the weapons aboard these military...

"A beginners look at the states of matter for third and fourth grades"--Provided by publisher.

Learn about metamorphic rocks, including what they are and how they are formed.

What is a glacier? Who has lived along the Arctic coast for 4,000 years? When did explorers first reach the North Pole?

Find out what happens when the monsoon season starts, why people visit the Red Sea, and why dugongs are also called sea cows.--Back cover.