Principles of Relative Dating
Flashcard
•
Science
•
12th Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the principle of superposition?
Back
In a sequence of undisturbed sedimentary rocks, the oldest layers are at the bottom and the youngest layers are at the top.
Tags
NGSS.MS-ESS1-4
2.
FLASHCARD QUESTION
Front
Define intrusion in geology.
Back
An intrusion is a body of igneous rock that forms when magma cools and solidifies within pre-existing rock layers.
Tags
NGSS.MS-ESS2-1
3.
FLASHCARD QUESTION
Front
What is an unconformity?
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.
Tags
NGSS.MS-ESS1-4
4.
FLASHCARD QUESTION
Front
What does a fault represent in geological terms?
Back
A fault is a fracture or zone of fractures between two blocks of rock, allowing for movement and displacement.
Tags
NGSS.MS-ESS1-4
5.
FLASHCARD QUESTION
Front
Explain what erosion surface means.
Back
An erosion surface is a surface that has been worn away by the action of wind, water, or ice, often exposing underlying layers.
Tags
NGSS.MS-ESS2-2
6.
FLASHCARD QUESTION
Front
What is the significance of rock unit relationships in relative dating?
Back
Rock unit relationships help determine the chronological order of geological events and the relative ages of rock layers.
Tags
NGSS.MS-ESS1-4
7.
FLASHCARD QUESTION
Front
How can you identify the youngest rock layer in a sequence?
Back
The youngest rock layer is typically found at the top of the sequence, following the principle of superposition.
Tags
NGSS.MS-ESS1-4
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