Science in Action: Science of Glaciers: How Temperature Works
Timeline Trackers: Westward Expansion: A Timeline History of the Transcontinental Railroad
Spotlight on Immigration and Migration: African American Migrations in North America
Wilderness Survival Skills: Making Fire in the Wild
Keystone Species that Live in the Sea and Along the Coastline
Solving Real World Problems with Environmental and Green Engineering
Saving the Endangered Grizzly Bear
Discovering Native North American Cultures
Life During the California Gold Rush
United States Regions: Mountain Region
United States Regions: West Coast Region
Let's Explore Science: Erosion
Uncovering American History: A Primary Source Investigation of the Gold Rush
Building The Transcontinental Railroad