Plate Tectonic Trivia!!
This layer of the Earth is approximately 5-40 km deep and contains the Earth’s surface and the ocean floor.
THE CRUST
This layer of the Earth consists of two layers, makes up about 80% of the Earth’s volume, and is almost 3,000 km deep.
THE MANTLE THE TWO LAYERS ARE _______?????
What two metals is the core made out of???
IRON AND NICKEL
What is the difference in consistency between the inner core and the outer core?
INNER CORE: SOLID METAL OUTER CORE: MOLTEN LIQUID METAL
What two things increase as you go deeper into the Earth???
TEMPERATURE and PRESSURE
What type of currents are in the mantle?
CONVECTION CURRENTS
The tectonic plates are the ____________ layer of the mantle, while they slide around on _______________ layer of the mantle.
The tectonic plates are the LITHOSPHERE layer of the mantle, while they slide around on Asthenosphere layer of the mantle.
About how much do the tectonic plates move every year??? A m per year B mm per year C inches per year D cm per year
D.!!!! 1-10 CENTIMETERS PER YEAR
What are the three types of boundaries??
TRANSFORM, DIVERGENT, and CONVERGENT
What is a transform boundary?
When two plates slide past each other in opposite directions….EARTHQUAKE BOUNDARY!
What is a convergent boundary???
When two plates run into each other and form MOUNTAINS!! Or one plate goes on top of the other plate and forms a subduction zone and volcanoes!
What is a divergent boundary???
A boundary in which tectonic plates pull away from each other and form land subsidence and mid ocean ridge
What are the three types of deformation of rocks???
SHEARING, TENSION, and COMPRESSEION
With what boundary does shearing happen?
TRANSFORM
With what boundary does COMPRESSION happen?
CONVERGENT
With what boundary does TENSION happen?
DIVERGENT
What are the three types of faults?
Strike-slip, Reverse, and Normal
What boundary is associated with a strike-slip fault??
TRANSFORM BOUNDARY…. What type of deformation is that???
What boundary goes with a normal fault?
DIVERGENT BOUNDARY What kind of deformation is that?
What type of boundary is associated with a reverse fault?
Convergent Boundary! What type of deformations is that?
What is the name of the longest mountain chain in the world and where is it located?
Mid Ocean Ridge….ALL OCEANS
What scientist came up with the theory of continental drift?
Alfred Wegener
Which scientist was the first one to think that Africa and the Americas were at one time connected?
Ortelius
Which scientist came up with the Uniformitarian Principle and the Law of Superposition?
Hutton
What is the Law of Superposition??
Older rocks are deeper in the Earth than younger rocks.
What is the Uniformitarian Principle?
“The present is the key to the past..”
If you were studying the mid-ocean ridge, and you wanted to find the newest, “youngest” rocks, where would you look?
At the very center of the mountain
What is sea-floor spreading?
The process that continually adds new material to the ocean floor; the sea floor spreads as new crust is added
What is the process called where material travels down ocean trenches back into the mantle?
SUBDUCTION
What two forces act on the material being pushed down the trench (subduction zone)?
Gravity and convection currents
Which Ocean is shrinking?
PACIFIC
Which ocean is expanding?
Atlantic
Where will most volacanos and earthquakes occur?
Along fault lines/Plate boundaries
What is land subsidence?
When the land surface sinks
Who came up with the theory of Pangaea?
Alfred Wegener
What is a contour interval
Distance between each contour line
What do topographic maps measure?
elevation
FINAL JEOPARDY QUESTION…. Make your wager………
Write out the whole plate tectonics chart….include boundaries, faults, arrows, rock deformation, and what happened here!!!