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Geologic History- Contrast absolute and relative time
- Use and interpret the Geologic Timetable to list geologic eras and describe features of them
- Use Law of Superposition, Crosscutting Relationships and unconformities to determine the relative age of rock layers
- Define "fossil" and identify ways fossils are preserved
- Explain how fossils are used to read the rock record
- Explain how radioactive elements can be used to determine absolute time (Half-life)
