Plate Tectonics Review

The process in which the ocean floor sinks beneath a deep-ocean trench and back into the mantle again is what?

• Subduction
• Continental Drift
• Plate Tectonics
• Subuction

What was the name given to all the continents when they were joined as one super continent? 

• Supreme Continent
• Eurasia
• Plate tectonics
• Pangea

Tags

NGSS.MS-ESS2-3

The mantle is made of magma. When magma rises and sinks in a circular motion, this is called ______________.

• a conduction current

• a hot spot

• a volcanic eruption

• a convection current

Tags

NGSS.MS-PS1-4

Observe this diagram of a plate boundary. One statement BEST describes what is happening. It is that

• the oceanic crust is melting.

• the denser ceanic crust is subducting under the less dense oceanic crust

• volcanic islands are forming.

• the tectonic plates are moving away from each other.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Alfred Wegener thought the continents had moved because he saw evidence of fossils of the same land reptiles, found on different continents that were widely separated across oceans. Wegener’s use of the fossil evidence helped develop his theory of ____.

• Seafloor Spreading

• Land Shifting

• Mountain Formation

• Continental Drift

Fossils of the fern Glossopteris have been found in Africa, Australia, South America, and Antarctica.

How do scientists explain this observation?

• the continents were at one time joined together when the plant was growing and then moved apart

• the fern plants grew independently on each continent

• the fern had adaptations to survive the environments of the continents

• the wind blew the seeds across the oceans from continent to continent

True or False?

All of the following is evidence used by Hess to develop his explanation for Seafloor Spreading.

matching patterns of magnetic stripes on the ocean floor molten material along mid ocean ridges older rock found farther from mid ocean ridges

• True

• False

For nearly half a century, from the 1920's to the 1960's, most scientists paid little attention to the idea of continental drift. Why did it take so long for scientists to believe Wegener’s theory?

• He was not a real scientist, so they did not try believe him

• He did not provide enough evidence

• He did not have proof and exact methods to explain the processes that were going on

• He did not try to help them understand

How is heat transferred within Earth's interior?

• Convection

• Conduction

• Radiation

• None of the above

Tags

NGSS.MS-ESS2-1

The arrows in this photo represent what process?

• Radiation

• Convection

• Conduction

Tags

NGSS.MS-ESS2-6