This is the vibration or shaking of Earth's crust caused by rapid movement of rocks in the lithosphere
What is an earthquake
100
Proposed the theory of Continental Drift
Who is Alfred Lothar Wegner
100
Which is denser, continental crust or oceanic crust? Why? What page in ESRT is this answer on?
What is oceanic crust because it is composed of mafic basalt. (continental crust is composed of felsic granite). Page 10 and 6.
100
What do 2 arrows moving away from each other represent on page 5 of the ESRT?
What is a diverging plate boundary
200
Give 4 pieces of evidence for how we know the lithosphere is in a constant state of change
What is tilting, folding, faulting, marine fossils, benchmarks.
weaker answers = earthquakes, volcanoes, plate tectonics
200
Where do most earthquakes occur?
What is along plate boundaries
200
Where are older rocks found, near a mid-ocean ridge or away from the ridge?
What is away from the ridge
200
What is the interior temperature range of the Outer Core? What page of ESRT?
What is ~5000 degrees Celsius to ~6,200 degrees Celsius. page 10
200
What 2 features are formed when an ocean converges with a continent. Give an example of each feature.
What is a trench and mountains. The Peru-Chili trench and the Andes mountains.
300
This is the thicker, less dense part of the lithosphere
What is Continental Crust
300
What causes an earthquake. (Your teacher requests some sort of acting and/or use of the blocks)
What is the sudden release of energy in rocks beneath the surface after a great amount of stress is produced and the rocks bend and break
300
Describe how the Hawaiian Islands were formed and where will the next island be located?
What is a hotspot or magma plume under the Pacific Plate. As the plate moves over the stationary plume, magma reaches the surface and forms an island. The next island will be located where the big island of Hawaii is now
300
How was the Red Sea created? (Be specific with plate tectonics). What feature is also formed from this? What page of ESRT?
What is by the divergence of 2 continental plates (Arabian and African plates). East African Rift is also formed. Page 5.
300
What plate is subducted when 2 oceans converge?
What is the older, denser one
400
This is the reason we know that the Earth's interior layers are different in composition, state of matter, and densities
What is seismic waves
400
Give 3 ways that compressional and shear waves differ (acting is recommended)
What is compressional waves are faster, they push the material in which they pass in the same direction that they move, they can move through solids, liquids, and gas. etc...
400
How does the Earth's magnetic field give proof that the seafloor is spreading? (Give me details)
What is as basaltic lava cools, the iron-bearing minerals become oriented parallel to Earth's magnetic field and that parallel strips of basalt found on both sides of the ridge
show periodic reversals of magnetic polarity
400
If a compressional wave traveled 6,000 km to a seismograph station, how long did it travel for? What page of ESRT?
What is ~00:09:20. Page 11
400
What type of fault is the San Andreas? Describe its movement.
What is a strike-slip or transform fault. The 2 plates move along side each other.
500
Give the name for the crustal movement being displayed by your amazing teacher. Describe what is happening.
What is a normal fault which is when the hanging wall moves downward in relation to the foot wall
500
Give a full account for why shadow zones are created
What is that as seismic waves go from one layer of Earth's interior to another, the densities change, which make the waves refract. Seismographs 103-143 degrees from the epicenter do not detect any waves because of this refracting.
500
Give 3 pieces of evidence for Wegner's theory of Continental Drift
What is that the plates seem to look like a jigsaw puzzle, climatic reasons (glacial evidence and coal evidence), rock formations, and fossils. etc....
500
When did the earthquake occur if the compressional wave was detected at 16:30:17 and the distance it traveled was 5,000 km?
What is 16:21:57
500
What are the coordinates for the black dot in the middle of the Fiji plate?