Geologic Time Scale
Construct a scientific explanation based on evidence from rock strata for how the geologic time scale is used to organize Earth's 4.6-billion-year-old history.

Geoscience Processes at Varying Scales
Construct an explanation based on evidence for how geoscience processes have changed Earth's surface at varying time and spatial scales.

Evidence of Plate Tectonics
Analyze and interpret data on the distribution of fossils and rocks, continental shapes, and seafloor structures to provide evidence of the past plate motions.