Rock Layers
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the geologic time scale?
Back
A model scientists use to describe the timing of events and the relationships between those events in Earth’s history.
2.
FLASHCARD QUESTION
Front
What does relative dating involve?
Back
Placing rocks in order from youngest to oldest.
3.
FLASHCARD QUESTION
Front
Which layer is older: Layer E or Intrusion A?
Back
Intrusion A.
4.
FLASHCARD QUESTION
Front
Which rock layer is typically the oldest in a sequence?
Back
The bottom layer, often referred to as the oldest layer.
5.
FLASHCARD QUESTION
Front
What type of rock is a conglomerate?
Back
A sedimentary rock composed of rounded fragments.
6.
FLASHCARD QUESTION
Front
What is the significance of the Law of Superposition?
Back
In an undeformed sequence of sedimentary rocks, the oldest layers are at the bottom and the youngest are at the top.
7.
FLASHCARD QUESTION
Front
What is an intrusion in geology?
Back
A body of igneous rock that has crystallized from molten magma beneath the Earth's surface.
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