Is constant access to technology safe for children? Should driverless vehicles replace human-controlled cars? Every day, we hear arguments about technology issues in the media. This book… More →

Does bottled water do more harm than good? Should clear-cutting for agriculture be allowed? Every day, we hear arguments about environmental issues in the media. This book gives readers the… More →

In its short history, the United States has been shaped by many important events. Read about Ellis Island, the first stop for millions of immigrants headed for North America, from 1892 to… More →

Follow along as a researcher observes and makes journal entries about their field trip through the everglades ecosystem in Florida. Outstanding photographs highlight the animals and plants… More →

Soil is second only to oceans as the most important living area on planet Earth. A square meter of soil may be home to many millions of living things. Soil is as important as the atmosphere… More →

Baseball is an exciting "game of inches"--especially when the ball falls inches inside or outside the foul line. Find out who invented the game, how it grew in popularity, what championships… More →

Basketball is hard to beat for excitement up and down the court. Find out who invented the game, how it grew in popularity, what championships are held--both amateur and professional--and,… More →

Football fans are loyal fans, who show up in blistering heat or raging blizzards. Find out who invented the game, how it grew in popularity, what championships are held--both amateur and… More →

Hockey fans love the sport's fast pace and hard hits. Find out who invented the game, how it grew in popularity, what championships are held--both amateur and professional--and, best of all,… More →

Soccer is probably the world's favorite sport. Find out who invented the game, how it grew in popularity, what championships are held--both amateur and professional--and, best of all, who the More →