Examines the childhood, education, employment, and political career of the forty-first president.

Profiles the early life, career, family, and contributions of the fifth president of the United States.

An introduction to the geography, history, government, economy, people, and culture of the most populated country in the world.

Describes the childhood, education, employment, and political career of America's second president.

Explores the great westward migration on the Oregon Trail in the nineteenth century and the experiences of those who traveled that way.

Profiles the Cuban-American pop singer who is the leader of the popular Latin musical group the Miami Sound Machine.

"Charles Darwins famous theory of natural selection shook the world of science to its core, challenging centuries of orthodox beliefs about life itself. Darwins boundary-shattering treatise was captured in On the Origin of Species, originally published in 1859, a groundbreaking and detailed study on ecological interrelatedness, the complexity of animal and plant life, and the realities of evolution.This Young Readers Edition makes Darwins cornerstone...

Farmers were tilling soil to grow crops before the dawn of recorded history. This book examines how soil is formed and the history of agriculture and how it changed life for mankind. Students can learn what properties make soil fertile and which ones allow different crops to thrive in various regions. Finally, it reports on advances in soil science and what technology means for the future of farming.

Discusses the history of scientific exploration with emphasis on the discoveries of Captain James Cook, Charles Darwin, and Alexander von Humboldt.

Argues both sides of the debate on assisted suicide and euthanasia.