Describes the development of a railway system uniting the United States, from its design and planning, through the problems that plagued its construction, to its completion in 1869 and its subsequent effect on the nation.

Photographs, maps, time lines, and easy-to-follow text describe the events surrounding the 2010 British Petroleum oil spill in the Gulf of Mexico.

Photographs, maps, time lines, and easy-to-follow text describe the events surrounding the 1883 eruption of Mount Krakatau.

An exploration of the Wampanoag Indians, discussing the nation's relationship with settlers, culture, women, housing, and more.

Photographs and text introduce scientific concepts related to energy, explaining what energy is and what it affects, describing how people have used energy throughout human history, and providing additional facts, statistics, and a time line.

Learn what rocks are made of and learn geologists use rocks and minerals to learn about the Earth's history.

Photographs and text introduce scientific concepts related to gravity, explaining what gravity is and what it affects, describing human understanding of gravity throughout history, and providing additional facts, statistics, and a time line.

Discusses traveling great distances into space and studying it while living there.

"This book explains what the Sun is and how it affects the rest of the solar system"--Provided by publisher.

Readers will discover how gemstones are formed, how they get their incredible colors, and what sets them apart from other minerals.