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The Rock Cycle

20 minutes, 21 seconds

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Three people sitting on ground looking at rocks. Caption: Geologists divide sedimentary rocks into three main types…

"The Rock Cycle" is an educational Earth science overview of how rocks form, change, and recycle over millions of years. The video explains the three main rock types—igneous, sedimentary, and metamorphic—and introduces key geology vocabulary such as minerals, magma, lava, erosion, sediment, weathering, compaction, fossils, heat, and pressure. It compares intrusive and extrusive igneous rocks, describes layered sedimentary rocks and fossil evidence, and shows how metamorphic rocks develop from existing rock under extreme conditions. Examples including granite, basalt, pumice, obsidian, limestone, shale, marble, and slate support classification and observation skills. The content aligns strongly with school curricula in Earth and space science, geology, and scientific processes involving change over time, rock identification, and interpretation of Earth’s history.

Media Details

Runtime: 20 minutes, 21 seconds

ASL
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Viewer Comments

  • Tiny me photo
    Anonymous (LONG BEACH, CA)
    November 9th, 2015 at 10:07 AM

    This is my favorite in this series of rock movies as it describes in detail the processes involved to change each rock.