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STANDARDS

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US-TX

Science

Texas Science

Earth Science: The student knows that rocks and fossils provide evidence for geologic chronology, biological evolution, and environmental changes.

Describe the development of multiple radiometric dating methods and analyze their precision, reliability, and limitations in calculating the ages of igneous rocks from Earth, the Moon, and meteorites.
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Apply relative dating methods, principles of stratigraphy, and index fossils to determine the chronological order of rock layers.
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Construct a model of the geological time scale using relative and absolute dating methods to represent Earth's approximate 4.6-billion-year history.
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Explain how sedimentation, fossilization, and speciation affect the degree of completeness of the fossil record.
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Describe how evidence of biozones and faunal succession in rock layers reveal information about the environment at the time those rocks were deposited and the dynamic nature of the Earth.
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Analyze data from rock and fossil succession to evaluate the evidence for and significance of mass extinctions, major climatic changes, and tectonic events.
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