vocabulary
The Crust
What is the thinnest layer of the earth?
There are ___many layers of the earth
what is 4
A rift valley forms at a
What is a divergent boundary?
the three types of stresses
What are compression tension and shearing
The variable that you change on purpose
What is Independent
number of rigid but moving pieces of Earths crust
What are tectonic plates?
thickest layer of the earth
What is mantle
A fold in rock that bends up
What is a Anticline?
Tension causes__________faults
What is normal
How old is Ms. Marshall?
What is 25, forever
the theory that continents were once on large land mass called Pangaea that drifted apart.
What is continental drift?
plates float on top of the____________________
What is the mantle
In a normal fault the hanging wall is
What is up?
In a reverse fault the footwall is
What is down
_____________explored the bottom of the Ocean in a submarine
Who is Harry Hess?
states that the youngest rocks of ocean floor are moving outward.
What is sea floor spreading?
what is the hottest solid layer of the earth
What is core
Strike slip faults can occur at this boundary
What is transform
Draw a normal fault
pic
What plate holds no continents
What is Pacific Plate
This layer will sub-duct under the other
What is Oceanic under continental?
Convection currents are
When hot material from the bottom of the mantle gets let dense and travels up, then cools away from the heat source gets more dense then falls
A reverse fault is caused by a ____________stress
What is compression
The difference between a volcano near a plate boundary and a hot spot volcanoe
Hot spots dont move ect..
The state where Ms. Marshall is from
What is Missouri