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Why Do Ice Crystals Break Rocks?

Water and its cold-weather companion, ice, are a part of the natural system of weathering and erosion. Together, weathering and erosion help to form mountains, canyons and cliffs.

  1. About Ice

    • Water and ice carve out cliffs.

      When water freezes, it expands.

    Effects

    • Ice causes cracks in rocks to widen.

      If water is frozen in tiny cracks or fissures in rocks, the effect of the freezing process (i.e., expansion) will result in the cracks widening.

    Significance

    • Eventually, the process of freezing and melting will result in the rock breaking.

    Time Frame

    • The weathering process can take a very long time, depending on the size of the rock.

    Fun Fact

    • Ice has helped to create the Grand Canyon.

      In addition to the Colorado River's flow, ice crystals helped to form the Grand Canyon.

Rocks & Minerals
Rocks & Minerals

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