calculating the age of a rocks from various regions using radioactive half life (given its constituent elements, isotopes and rate of decay) and using those values to provide evidence for geologic relationships between/among the regions.
Earth and Space Science
The earth and earth materials as we know them today have developed over long periods of time, through continual change processes.
Relate how geologic time is determined using various dating methods (e.g. radioactive decay, rock sequences, fossil records).