RHNC+2.1

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 * 2.1 Earths Crust in Motion**

Vocabulary

 * earthquake** - shaking/trembling from a rock beneath Earth's surface
 * stress** - force that acts on rock to change its shape or volume
 * shearing** - stress that pushes rock in two opposite directions
 * tension** - stress force that pulls on crust
 * compression** - squeezes rock until it folds/breaks
 * deformation** - any change in volume/shape of earth's crust
 * fault** - break in earth's crust where slabs of crust slip past each other
 * strike-slip fault** - rocks on both sides of faults slip sideways past each other with some up/ down motion
 * reverse fault** - opposite of normal fault
 * normal fault** - one block of rock above fault, the other below
 * fault block mountains** - normal fault rocks
 * folds** - bends in rock
 * anticline** - fold in rock that bends upwards
 * syncline** - fold in rock that bends downwards
 * plateaus** - flat, elevated land

Stress in the Crust

 * movement of plates

Types of Stress

 * shearing
 * tension
 * compression

Kinds of Faults

 * strike slip faults
 * normal faults
 * reverse faults

Mountain Building

 * mountains formed by Faulting
 * mountains formed by folding
 * Anticlines and Synclines
 * plateau