Relative Age Dating

Flashcard
•
Science
•
8th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the law of superposition?
Back
The law of superposition states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest layers are at the top.
Tags
NGSS.MS-ESS1-4
2.
FLASHCARD QUESTION
Front
Which layer is the youngest according to the law of superposition?
Back
The youngest layer is the one at the top of the sequence.
Tags
NGSS.MS-ESS1-4
3.
FLASHCARD QUESTION
Front
What does the law of crosscutting state?
Back
The law of crosscutting states that a fault or intrusion is younger than the rocks it cuts through.
Tags
NGSS.MS-ESS1-4
4.
FLASHCARD QUESTION
Front
How can you determine the relative age of a rock?
Back
The relative age of a rock can be determined by comparing its position in layers of rock to other rocks.
Tags
NGSS.MS-ESS1-4
5.
FLASHCARD QUESTION
Front
What is relative age?
Back
Relative age is the age of a rock compared to the ages of other rocks.
Tags
NGSS.MS-ESS1-4
6.
FLASHCARD QUESTION
Front
What is absolute age?
Back
Absolute age is the actual age of a rock or fossil, often determined by radiometric dating.
7.
FLASHCARD QUESTION
Front
What is an unconformity?
Back
An unconformity is a gap in the geological record that represents a period of erosion or non-deposition.
Tags
NGSS.MS-ESS1-4
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