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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…

Rocks, a naturally formed material that covers the earth, are classified by their origin. Discusses rocks' composition, three types (igneous, sedimentary, and metamorphic), how they are formed, and how they are changed. The rock cycle is a slow, ongoing process.

Media Details

Runtime: 20 minutes 21 seconds

Map of Alaska with Anchorage displayed. 1964 Epicenter indicated on coastline in bay adjacent to Anchorage. Caption: The epicenter was in Prince William Sound
11 minutes 37 seconds
Grade Level: 7 - 12
Dry, brown grass and brush with crumbling rocks throughout and a flat-topped rocky hill in the background. Caption: punctuated by hills, badlands, and bluffs --
America's National Monuments: Legacy Of The Great Plains
Episode 1
8 minutes 58 seconds
Grade Level: 7 - 12
Person walking through low hills of green and brown shrubs and rock strewn in red soil. Caption: through the Texas Panhandle.
America's National Monuments: Legacy Of The Great Plains
Episode 2
9 minutes 47 seconds
Grade Level: 7 - 12
Illustration of a man sitting at a desk, looking off into the distance at nothing. Caption: Maybe the continents drifted apart.
7 minutes 36 seconds
Grade Level: 7 - 12
A subduction zone. In a subduction zone oceanic plate dives beneath the continental plate. Contact at time equal zero. G P S at time equals zero. Caption: Megathrust earthquakes most commonly occur
Ask a Scientist
Episode 22
1 minutes 23 seconds
Grade Level: 10 - 12
Rolling two-peaked hill and valley covered in trees. Caption: Inexplicably, Capulin Volcano is tree covered,
America's National Monuments: Legacy Of The Great Plains
Episode 3
11 minutes 18 seconds
Grade Level: 7 - 12
A tree lined river with steep banks on one side. Caption: you have groundwater that flows into the river
Career Connections
Episode 39
4 minutes 54 seconds
Grade Level: 7 - 12
Cave with stalactites and stalagmites in light brown rock. Caption: and great cathedrals of rock
17 minutes 20 seconds
Grade Level: 6 - 10
Rolling brown foothills ending in San Francisco Bay with the Golden Gate bridge in the foreground. Caption: This movement is called an earthquake.
11 minutes 9 seconds
Grade Level: 3 - 6
Still image from: Core Geology
32 minutes 52 seconds
Grade Level: 10 - 12

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.