Continental drift
Wegener
Sea Floor Spreading
Plate tectonics
Plate tectonics
100
a supercontinent
What is Pangaea?
100
Wegener's main field of study was ...
meteorology
100
What are the ocean ranges in the middle of oceans called...
What is a mid-ocean range?
100
cold, rigid, outermost layer of earth...
What is the lithosphere?
100
The mid-ocean ridge is this type of fault.
What is a divergent boundary?
200
all continents are in constant motion.
What is continental drift?
200
What first caused Wegener to hypothesize about continental drift
What is matching coastlines?
200
The method used to map the sea floor.
What is echo sounding on moving ships?
200
Where two plates separate...
What is a divergent plate boundary?
200
the circulation of material caused by differences in temperature and density
What is convection?
300
climate clue
What is glacier evidence in warm countries?
300
What Wegener could not explain...
What is How the continents moved?
300
evidence in the rocks on the sea floor of spreading...
What is matching magnetic signature's of rocks?
300
When one plate descends beneath another plate...
What is subduction?
300
The volcanoes formed in America's NorthWest are at this type of boundary.
What is an oceanic/continental convergent boundary
400
fossil clues
What is matching fossils, especially glossopteris on different continents?
400
Wegener died on a trip to....
What is Greenland?
400
the condition when magnetized objects point north.
What is normal polarity?
400
The San Andreas fault is one...
What is a transform boundary?
400
How can we track the continents' movement?
What is GPS?
500
rock clues
What is matching mountain formations, rock types, rock structures on different continents.
500
Wegener was from this country.
What is Germany?
500
the oldest rocks in the ocean are closer to the......
What are coastlines?
500
When this plate subducts volcanoes usually form.
What is an oceanic plate?
500
when plates move away from the mid ocean ridge with a force...
What is ridge push?
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