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Worksheetstectonic plates
Total questions: 13
Worksheet time: 12mins
The type of crust that is under the world's oceans.
CONTINENTAL
OCEANIC
This type of crust is described as denser and heavier
CONTINENTAL
OCEANIC
Thicker and older part of the Earth's crust
CONTINENTAL
OCEANIC
Two plates come together or collide at what boundary?
Convergent
Divergent
Transform
Which of the following is formed at Continent- Continent convergent boundaries?
Volcanic Mountains
Earthquakes
Non-volcanic Mountain Ranges
Both volcanoes and earthquakes
This is evidence that sea-floor spreading occurs. Choose 2 answers.
Younger rock was found close to the mid-ocean ridge.
Younger rock was found further away from the mid-ocean ridge.
Pillow lava is found on the bottom of the ocean floor.
Mid-ocean ridges are found at the bottom of the ocean floor.
Why did scientists not believe Alfred Wegener's hypothesis?
Wegener did not have enough evidence for continental drift.
Wegener did not collect enough fossils.
Wegener could not explain why there were the same fossils on different continents.
Wegener could not explain the force that could move the continents.
The idea that the continents were once joined together and since drifted apart is called
Pangaea
Continental Drift
Wegener's supercontinent
Sea-Floor spreading
Why does subduction occur?
Old crust is more dense and gravity helps pull the crust back into the mantle.
Old crust is less dense and it sinks back into the mantle.
Old crust is warm and melts back into the mantle.
Old crust has no where else to go but through trenches.
Check all the pieces of evidence that Wegener found to explain continental drift.
Plant fossils found on Antarctica.
The coastlines of Africa and South America line up.
Coal fields line up in Europe and North America.
Similar freshwater fossils found on different continents.
