8.E.2.1 Vocab review

Front

Method to measure the age of an event/object in exact years using decay of Carbon-14 or Uranium-238.

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Absolute or Radioactive Dating

Front

Carbon dating relies on:

Back

All living things contain a small amount of carbon-14.

Front

Example of absolute age:

Back

"Velociraptors lived 71-75 million years ago."

Front

True age of a rock or fossil indicates years since formation.

Back

Absolute Age

Front

Geologic age of a fossil or rock defined relative to others.

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Relative age

Front

Oldest fossils are found:

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Near the bottom of the rock layers.

Front

Break in geologic record due to erosion of rock layers.

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unconformity

Front

Features from oldest to youngest:

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Limestone, Siltstone, Fault, Basalt

Front

Process of formation or growth; development

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Evolution

Front

Hypothetical supercontinent with all current land masses before they separated during the Triassic and Jurassic periods.

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Pangaea