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Chapter 8.2- Relative Age Of Rocks
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Total cards: 8•Content version: v3•Public deck•Updated: 8/1/2026
Card preview (8)
#1
Front (Question)
A rock is the number of years that have passed since the rock formed
Back (Answer)
Absolute age
#2
Front (Question)
Determine the relative ages of sedimentary rock layers
Back (Answer)
Law of superposition
#3
Front (Question)
Lava that hardens on the surface and forms igneous rock
Back (Answer)
Extrusion
#4
Front (Question)
Magma cools and hardens into mass of igneous rock
Back (Answer)
Intrusion
#5
Front (Question)
A break in earth’s crust
Back (Answer)
Fault
#6
Front (Question)
Help geologists match rock layers
Back (Answer)
Index fossil
#7
Front (Question)
A gap in the geologic record. It shows where rock layers have been lost due to erosion
Back (Answer)
Unconformity
#8
Front (Question)
A rock is its age compared to the age of other rocks
Back (Answer)
Relative age