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11 questions
What is Stress?
Force that acts on rock to change its shape or volume
What causes students to freak out on test day
The definition of Plate Tectonics
Sea floor spreading
Pulls on the crust, stretching rock so it becomes thinner in the middle
Tension
Stress
Compression
Shearing
Squeezes rock until it folds or breaks
Tension
Stress
Compression
Shearing
Pushes a mass of rock in two opposite directions
Tension
Stress
Compression
Shearing
Example: •Fault zones – an area of many fractured pieces of crust along a large fault
Tension
Stress
Compression
Shearing
Example: ••Volcanic arcs – curved line of volcanoes that forms parallel to plate boundaries
Tension
Stress
Compression
Shearing
Example: •Continental rifts – when divergent boundaries occur within a continent, they cause enormous splits in the crust
Tension
Stress
Compression
Shearing
Example:•Mid-ocean ridges – tension causes oceanic crust to spread allowing hot rock from mantle to rise creating high ridges
Tension
Stress
Compression
Shearing
Example:•Mountain ranges – collision between two continental plates
Tension
Stress
Compression
Shearing
Example:•Transform faults – when plates slide horizontally past each other they form a fault, or a break in the rock of the crust
Tension
Stress
Compression
Shearing
Example:•Mountain ranges – collision between two continental plates
Tension
Stress
Compression
Shearing
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