Relative Dating
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is Relative Dating?
Back
Relative Dating is a method used to determine the age of rocks and fossils in relation to one another, without determining their exact age.
2.
FLASHCARD QUESTION
Front
What does the Law of Superposition state?
Back
The Law of Superposition states that in undisturbed rock layers, younger rocks lie above older rocks.
3.
FLASHCARD QUESTION
Front
What is an index fossil?
Back
An index fossil is a fossil that is used to define and identify a particular time period in the geological time scale, and it must have existed for a relatively short period of time.
4.
FLASHCARD QUESTION
Front
Which layer is typically considered the oldest in a sequence of rock layers?
Back
The bottom layer is typically considered the oldest in a sequence of undisturbed rock layers.
5.
FLASHCARD QUESTION
Front
What is the significance of the Law of Cross-Cutting Relationships?
Back
The Law of Cross-Cutting Relationships states that if a geological feature cuts through another, the feature that has been cut is older.
6.
FLASHCARD QUESTION
Front
What is an unconformity in geology?
Back
An unconformity is a surface that represents a gap in the geological record, indicating that sediment was not deposited for a period of time.
7.
FLASHCARD QUESTION
Front
How can fossils be used in relative dating?
Back
Fossils can be used in relative dating to compare the ages of rock layers; if the same fossil is found in different layers, those layers are likely to be of similar age.
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