Explores the beginning of the Revolutionary War, discussing the causes and leaders of the rebellion and how the first shots fired at Lexington and Concord began America's long road to independence.
Provides facts about the moon, discussing how far it is from Earth, its orbit, and gravity, explaining the phases of the moon, describing conditions on the moon, and reviewing the history of missions to the moon.
Discusses the history and meaning of Valentine's Day, looks at some of the different ways in which the holiday is celebrated, and includes photographs and an activity.
Illustrated exploration of volcanic eruptions that discusses why they occur, the damage caused by them, how they are studied, and other related topics.
Describes the U.S. flag's history and the meanings of its symbols, lists rules about the care and treatment of the flag, and discusses the Pledge of Allegiance.
Chronicles the April 2010 oil spill in the Gulf of Mexico, providing an overview of the spill's execpted effects and what people are doing to help clean up the oil.