Age of Earth Flashcard 1
Flashcard
•
Science
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is extrusion in geology?
Back
Extrusion is the process where lava erupts onto the Earth's surface and hardens to form igneous rock.
2.
FLASHCARD QUESTION
Front
What can scientists learn from studying fossils?
Back
Scientists can learn how life changed over time by studying the relationships between fossils.
3.
FLASHCARD QUESTION
Front
What is intrusion in geology?
Back
Intrusion is the process where magma pushes into rock layers below the Earth's surface and cools to form igneous rock.
4.
FLASHCARD QUESTION
Front
What are index fossils?
Back
Index fossils are fossils that are widespread and have a relatively short lifespan, making them useful for identifying the relative age of rock.
5.
FLASHCARD QUESTION
Front
How does the fossil record support the theory of evolution?
Back
The fossil record shows that organisms slowly change over time, supporting the theory of evolution.
6.
FLASHCARD QUESTION
Front
What is the significance of studying rock layers?
Back
Studying rock layers helps scientists understand the history of the Earth and the age of different geological formations.
7.
FLASHCARD QUESTION
Front
Define igneous rock.
Back
Igneous rock is formed from the cooling and solidification of magma or lava.
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