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PBS

Wgbh/pbs: Westward Expansion 1860 1890

For Students 9th - 10th
Many changes across the country during the westward expansion were features that could be captured on a map. Review this map and select characteristics to be illustrated. Characteristics such as population, major cities, railroads, and...
Graphic
Curated OER

Unesco: Palau: Rock Islands Southern Lagoon

For Students 9th - 10th
Rock Islands Southern Lagoon covers 100,200 ha and includes 445 uninhabited limestone islands of volcanic origin. Many of them display unique mushroom-like shapes in turquoise lagoons surrounded by coral reefs. The aesthetic beauty of...