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Introduces various facts about wind energy. Examines the history of wind power, its benefits, and its drawbacks.

Examines the environmental, social, and economic issues involved in the use of freshwater around the world.

Describes and explains the impact made by Europeans on the lives of various Native American tribes of North, Central, and South America, from the first contact in 1492 to the damage inflicted by Russians in the Aleutian Islands in the eighteenth century.

Explains how Native American confederacies were formed; discusses some famous examples including the Iroquois Confederacy, and covers how Native American groups continue to work together in the present day.

An examination of Native American life, discussing the rivalries between tribes over territory, possessions, and other causes, and the impact of the arrival of Europeans on those conflicts.

An examination of Native American life, discussing the languages spoken by different tribes in various regions, and looking at how Native American words have been incorporated into the modern English language.

An examination of Native American life, discussing the tools and weapons used by various tribes, and the spiritual significance given to them by the Native American people.

A short study of caves, discussing types of caves, where caves are found around the world, cave plants and animals, and challenges to the ecosystem.

An introduction to deciduous forest biomes that looks at where they are located in the world, their various climates and seasons, native plants and animals, why their existence is in danger, and the types of jobs relating to the deciduous forest.

Presents information on the Civil Rights Movement in the United States between 1954 and 1968, focusing on events and figures from African American history.

"Celebrates contemporary achievements of African Americans from the 1950s to the 2010s in all aspects of American culture, including the arts, sports, politics, and the sciences.

An introduction to gases, covering kinds of matter, what gas is, how gases are cooled, and more.

An introduction to liquids that explains how they are different from solids and gases, describes how liquids can change, and discusses the different forms of matter.

An introduction to solids, covering kinds of matter, what a solid is, how solids freeze and melt, and more.

The fire station is an important part of your neighborhood. Find out why in The Fire Station.