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rock
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rock size
The rock cycle: How different types of rock are formed
rock cycle rock textures rock textural terms rock sorting dry bulk densities deformation and confining pressure stress-strain curves general magnetic hysteresis curve
For Students
Slate, a metamorphic rock, showing typical splintery fracture and thin layering (slightly larger than life-size).
rock summary
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Cross section of Earth showing the core, mantle, and crust
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Basalt sample returned by Apollo 15, from near a long sinous lunar valley called Hadley Rille. Measured at 3.3 years old.
(Bed) Rocks and (Flint) Stones
ore. iron ore minerals, rock, metal, metallic iron
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Cross section of Earth showing the core, mantle, and crust
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rock: Related Content

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Photos and Videos

rock size
rock cycle
rock textures
rock textural terms
rock sorting
dry bulk densities
deformation and confining pressure
stress-strain curves
general magnetic hysteresis curve
Soil regions of the United States, showing areas covered by soil orders of the U.S. Soil Taxonomy. Click on a soil order for a descriptive entry on properties and uses.
The rock cycle: How different types of rock are formed
Learn how the earth keeps itself fresh and new and how the chemical properties of zircon determine the age of the earth
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Related Topics and References

Topics
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Key People

Gabriel-Auguste Daubrée
French geochemist
Day, Arthur L.
Arthur L. Day
American geophysicist
Hans Cloos
German geologist

Related Quizzes and Features

Quiz
Encyclopaedia Britannica thistle graphic to be used with a Mendel/Consumer quiz in place of a photograph.
27 True-or-False Questions from Britannica’s Most Difficult Science Quizzes
Cross section of Earth showing the core, mantle, and crust
The Solid Earth Quiz
ore. iron ore minerals, rock, metal, metallic iron
Rocks, Minerals, and More Quiz
Cross section of Earth showing the core, mantle, and crust
Everything Earth
Basalt sample returned by Apollo 15, from near a long sinous lunar valley called Hadley Rille. Measured at 3.3 years old.
(Bed) Rocks and (Flint) Stones
Basalt sample returned by Apollo 15, from near a long sinous lunar valley called Hadley Rille. Measured at 3.3 years old.
(Bed) Rocks and (Flint) Stones