NGSS MS-ESS1-4 Earth’s Place-Geologic Time Scale
PowerPoint. Events in the Earth’s 4.6 billion- year-old history are organized relative to one another using the geologic time scale.
Defines geologic time scale, rock strata, superposition, relative age, absolute age, fossils, mass extinctions. The geologic time scale interpreted from rock strata provides a way to organize Earth’s history. Analyses of rock strata and the fossil record provide only relative dates, not an absolute scale. Some major events in Earth’s history add evidence to the geologic time scale.
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