
Vocab flashcard 13
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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10 questions
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1.
FLASHCARD QUESTION
Front
Underwater mountain chain forming new ocean floor
Back
mid-ocean ridge
2.
FLASHCARD QUESTION
Front
Source of new oceanic crust at mid-ocean ridge:
Back
Sea-Floor Spreading
3.
FLASHCARD QUESTION
Front
A deep ocean floor valley where oceanic crust sinks toward the mantle.
Back
Deep-ocean trench
4.
FLASHCARD QUESTION
Front
Magnetic reversal
Back
Switch in Earth's magnetic field: magnetic north becomes south and vice versa.
5.
FLASHCARD QUESTION
Front
Speed of an object in a direction.
Back
velocity
6.
FLASHCARD QUESTION
Front
Travels through solids, moving ground up/down or side to side.
Back
Secondary waves
7.
FLASHCARD QUESTION
Front
Definition of convection currents?
Back
Movement of warm/cool fluids due to temperature differences; warm rises, cool sinks.
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