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World 3 · Glaciers Carve U-Valleys · 10 min · PRO

Plucking and scraping: glacial erosion

How slow ice reshapes solid rock

PRO · Landscape Lab

World 3: Glaciers Carve U-Valleys is part of PRO

The first world of Landscape Lab is free. PRO opens the other 21 lessons in 6 worlds — simulations, quizzes and all.

  • How a glacier is born: snow to ice
  • V becomes U: features of glaciated landscapes
  • Which ice raises the sea? Floating ice versus land ice
  • Reading what ice left behind: past glaciers
  • Rock that dissolves: karst and limestone
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  • All 60 labs — every world, every lesson
  • Practice exams and certificates

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