Rock Layers and Ages Practice Flashcard
Flashcard
•
Science
•
6th Grade
•
Practice Problem
•
Hard
+1
Standards-aligned
Wayground Content
FREE Resource
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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
What is an outcrop?
Back
An outcrop is a visible exposure of bedrock or ancient geological formations on the surface of the Earth.
Tags
NGSS.MS-ESS1-4
NGSS.MS-ESS2-2
3.
FLASHCARD QUESTION
Front
What does it mean if one layer is older than another?
Back
If one layer is older than another, it means that the older layer was deposited first, and the younger layer was deposited on top of it.
Tags
NGSS.MS-ESS1-4
4.
FLASHCARD QUESTION
Front
What is a fault in geology?
Back
A fault is a fracture or zone of fractures between two blocks of rock, which can cause displacement.
Tags
NGSS.MS-ESS1-4
NGSS.MS-ESS3-2
5.
FLASHCARD QUESTION
Front
What is sedimentary rock?
Back
Sedimentary rock is formed by the accumulation and compaction of mineral and organic particles, often in layers.
6.
FLASHCARD QUESTION
Front
What is the significance of fossils in rock layers?
Back
Fossils help determine the relative ages of rock layers and can indicate the environment in which the sediment was deposited.
Tags
NGSS.MS-ESS1-4
7.
FLASHCARD QUESTION
Front
What is the difference between relative age and absolute age?
Back
Relative age is the age of a rock layer compared to other layers, while absolute age is the actual age of the rock, often determined by radiometric dating.
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