What Is the Panama Canal?

What Were the Salem Witch Trials?

Where Is the Empire State Building?

Where Is Alcatraz?

What Was the Hindenburg?

What Was the Gold Rush?

What Was the Wild West?

Bomb: The Race to Build--and Steal--the World's Most Dangerous Weapon (Newbery Honor Book & National Book Award Finalist)

Who Was Dr. Seuss?

NBA Finals

What Was the Great Chicago Fire?

The Dream Keeper and Other Poems

Who Was Isaac Newton?

The Day the World Went Nuclear: Dropping the Atom Bomb and the End of World War II in the Pacific

Where Is the Tower of London?

The Complete Book of Presidents & States, Grades 4 - 6

The Boys in the Boat (Young Readers Adaptation): The True Story of an American Team's Epic Journey to Win Gold at the 1936 Olympics

What Can a President Really Do?: A Good Answer to a Good Question

What Is Earth Day?: A Good Answer to a Good Question