How Caves Form

  • By Rick Groleau
  • Posted 10.01.02
  • NOVA

Molten lava, crashing waves, seeping rainwater, and oil-eating bacteria: These are some of the forces of nature that, over many years, create caves from rock like limestone and sandstone. In this interactive, explore the geology behind four different types of cave formation.

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Watch as rainwater, waves, lava, and bacteria create four different types of caves.

This feature originally appeared on the site for the NOVA program The Mysterious Life of Caves.

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© WGBH Educational Foundation

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