test review. the hypothesis that continents slowly move across earth’s surface
TRANSCRIPT
![Page 1: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/1.jpg)
Plate TectonicsTest Review
![Page 2: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/2.jpg)
What is CONTINENTAL DRIFT?• The hypothesis that continents slowly move
across Earth’s surface
![Page 3: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/3.jpg)
What evidence supports CONTINENTAL DRIFT THEORY?• Landforms – mountain ranges that match up along
different coast lines• Fossils – fossils of the same organism have been
found on different continents• Climate – Climate has not changed over time
![Page 4: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/4.jpg)
Wegener’s supercontinent was called…• Pangaea
![Page 5: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/5.jpg)
Why was CONTINENTAL DRIFT not widely accepted?• Because Wegener could not provide a mechanism
for HOW the continents moved• He could not explain why mountains formed in the
middle of continents
![Page 6: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/6.jpg)
What features occur at DIVERGENT BOUNDARIES?• Rift valleys• Deep-sea trenches
![Page 7: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/7.jpg)
What features occur at OCEAN-OCEAN CONVERGENT BOUNDARIES?
• Deep-sea trenches• Island arcs• Subducting plate
![Page 8: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/8.jpg)
What features occur at OCEAN-CONTINENT CONVERGENT BOUNDARIES?
• Trench• Volcanic mountain range• Oceanic subducting plate
![Page 9: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/9.jpg)
What features occur at CONTINENT-CONTINENT CONVERGENT BOUNDARIES?
• Folded mountain range
![Page 10: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/10.jpg)
What features occur at TRANSFORM (SLIDING) BOUNDARY
• Trenches• Faults• Fracture zones• Earthquakes
![Page 11: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/11.jpg)
Describe what happens to crust (created, destroyed, etc.) at each of the three major boundaries.• Divergent – created• Convergent – destroyed• Transform – neither created nor destroyed
![Page 12: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/12.jpg)
Give an example of each type of boundary.• Transform – • San Andreas Fault
• Continental-Continental Divergent – • East African Rift Valley
• Ocean-Ocean Divergent– • Mid-Atlantic Ridge
• Ocean-Ocean Convergent – • Mariana Trench
• Continental-Continental Convergent – • Andes Mountains
![Page 13: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/13.jpg)
What produces plate movement?• Convection currents in the mantle• Slab pull• Ridge push
![Page 14: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/14.jpg)
Where are the youngest rocks in the ocean floor located? Why?
• The mid-ocean ridge• It’s where sea-floor spreading occurs
![Page 15: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/15.jpg)
What are the four layers of the Earth?• Crust• Mantle• Outer Core• Inner Core
![Page 16: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/16.jpg)
Which layer of the Earth is thinnest? Thickest?• Crust• Mantle
![Page 17: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/17.jpg)
Which plate is the largest?• Antarctic
![Page 18: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/18.jpg)
Which ocean is shrinking? Which is growing? WHY?• The Pacific is shrinking because of the large deep
ocean trenches.• The Atlantic is growing because of the large Mid-
Ocean Ridge.
![Page 19: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/19.jpg)
What area do we find the most volcanoes and earthquakes?
• Ring of Fire
![Page 20: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/20.jpg)
What are the major types of volcanoes?• Shield• Cinder cone• Composite• Hot spots
![Page 21: Test Review. The hypothesis that continents slowly move across Earth’s surface](https://reader035.vdocuments.us/reader035/viewer/2022062309/56649f2a5503460f94c43e0f/html5/thumbnails/21.jpg)
Along what boundary do volcanos occur?• Convergent boundaries