Plate Motion Unit Review
Flashcard
•
Science
•
6th Grade
•
Practice Problem
•
Easy
Barbara Erdossy
Used 1+ times
FREE Resource
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47 questions
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1.
FLASHCARD QUESTION
Front
Who proposed the Theory of Continental Drift?
Back
Alfred Wegener
Answer explanation
The Theory of Continental Drift was proposed by Alfred Wegener in 1912. He suggested that continents were once joined and have since drifted apart, a concept that laid the groundwork for modern plate tectonics.
2.
FLASHCARD QUESTION
Front
The idea that the continents were once a large supercontinent that separated over time is...
Back
Theory of Continental Drift
Answer explanation
The Theory of Continental Drift posits that continents were once joined as a supercontinent and have drifted apart over time. This concept is distinct from the Theory of Plate Tectonics, which explains the mechanisms behind this movement.
3.
FLASHCARD QUESTION
Front
What is the name of Wegener's supercontinent?
Back
Pangaea
Answer explanation
Wegener's supercontinent is called Pangaea. It existed during the late Paleozoic and early Mesozoic eras, bringing together all the Earth's landmasses into one large landmass before they drifted apart.
4.
FLASHCARD QUESTION
Front
The Theory of Plate Tectonics claims the plates are...
Back
In constant, slow motion.
Answer explanation
The Theory of Plate Tectonics states that tectonic plates are in constant, slow motion due to convection currents in the Earth's mantle, which allows them to move gradually over time.
5.
FLASHCARD QUESTION
Front
What type of plate boundary is formed when plates slide past each other in opposite directions?
Back
Transform
Answer explanation
A transform boundary occurs when tectonic plates slide past each other horizontally. This movement can cause earthquakes along faults, distinguishing it from convergent (plates collide) and divergent (plates move apart) boundaries.
6.
FLASHCARD QUESTION
Front
A convergent boundary is formed when two plates...
Back
Collide
Answer explanation
A convergent boundary is formed when two tectonic plates collide. This interaction can lead to one plate being forced under another, resulting in geological features like mountains or trenches.
7.
FLASHCARD QUESTION
Front
A rift valley is typically found when plates separate, which is the boundary known as...
Back
Divergent
Answer explanation
A rift valley forms when tectonic plates separate, which occurs at divergent boundaries. This is where new crust is created as the plates move apart, making 'Divergent' the correct answer.
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