The traces of imprints of living things – such as animals, plants, bacteria, and fungi – that are preserved in rock through geological processes

Any method that measures the age of fossils, rocks, objects or events in years

Any method of estimating the age of rocks and fossils

The divisions in the geologic time scale characterized by the type of organism that dominated the Earth at the time

The theory that explains how large pieces of Earth’s outermost layer (crust) move and change shape

Fossils provide evidence that Antarctica was once located

An example of a rapid change in conditions on Earth is

10. To measure a fossil’s age exactly, scientists study particles of matter called

What type of scientists use fossils to reconstruct the history of life before humans existed?

The continents may once have formed one landmass called Pangaea which means

J. Tuzo Wilson’s theory of how huge pieces of Earth’s crust are pushed around by forces within the planet is called

What are imprints of living things that are preserved in rock called?

What does the geologic time scale show about Earth?

How do scientists put fossils in order on the geologic time scale?

What kind of event made some divisions in the geologic time scale?

What is an example of a slow change of conditions on Earth?

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