Earth's Layers
What layer of Earth is the densest layer?
Crust
What is the name of the single land mass that the Earth once was?
Pangea
A mountain range can form only at the edge of a tectonic plate?
True or False
False
What temperature causes rocks to bend but NOT break?
High tempature
What is the texture of the sea-floor?
Rough, uneven, bumpy
The movement of matter that results from differences in density caused by variations in temperature?
Convection
The lithosphere is divided into two pieces called?
Tectonic Plates
What is the difference between folding and fault?
Folding- Rocks fold, bend
Fault- Rocks crack, break
Mt. Griggs is what type of mountain?
Volcanic
What layer is made mostly of iron and nickel?
Core
Is the outer core liquid or solid?
Liquid
What landform is likely to form at a convergent boundary?
Mountain
What is the name for the stress that stretches or pulls rocks apart?
Tension
What are the three types of mountains?
Folded
Volcanic
Fault-block
What is the name for the stress that squeezes or pushes rock together?
Compression
Where is the mantle located?
Between the core and the crust
North American Plate
What is deformation AND what causes it?
Rocks change shape - Stress causes it
Sea-floor spreading takes place at what type of ridge?
Mid-ocean ridges
What are the three kinds of faults?
Strike-slip faults
Normal faults
Reverse faults
What are the 5 physical layers of Earth?
Lithosphere, Asthenosphere, Mesosphere, Outer core, Inner core
Explain the difference between:
Convergent Boundaries
Transform Boundaries
Divergent Boundaries
Convergent Boundaries- two plates collide
Transform Boundaries- two plates move past eachother
Divergent Boundaries- two plates move away from eachother
What is shear-stress?
Stress that pushes rock in parallel but opposite directions
A rock structure with the oldest rock at the core of the fold is called a?
Anticline
What was the name of the guy that proposed his idea on continental drift?
Alfred Wegner