Plate Motion End-Of-Unit Assessment

Front

What is Earth’s outer layer like underneath the surface in the image?

Back

Underneath both the soil and the ocean, Earth’s outer layer is made of hard, solid rock.

Front

Dr. Raisa and her team of geologists have been studying GPS data that shows that two plates moved apart. Which diagram shows what happened between the two plates as they moved away from each other?

Back

Diagram D: Soft, solid rock from underneath the plates rose and hardened, adding solid rock to the edges of both plates.

Front

Fossil remains of Lystrosaurus (an extinct four-legged animal) have been discovered in India and South Africa. When they were living, all the Lystrosaurus lived together on land, and they could not swim. However, now there is an ocean between the Lystrosaurus fossils. What could explain how these fossils got so far apart?

Back

India and South Africa are parts of different plates. The plates slowly moved far apart as soft, solid rock from underneath got added to the edges of the plates over millions of years.

Front

If we took a cross section of a potted plant by cutting it vertically, what would the cross section look like?

Back

Diagram D

Front

Where will the geologists find hard, solid rock?

Back

Under 1 and 2, because Earth’s entire outer layer is made of hard, solid rock.

Front

What happens at the place where two plates are moving toward each other?

Back

One plate goes underneath the other plate and sinks into the soft rock below.

Front

Similar rock formations have been discovered in Brazil and South Africa. These rock formations were formed at the same time and are made of the same types of rocks. What could explain how these rocks got so far apart?

Back

Brazil and South Africa are parts of different plates. The plates slowly moved far apart as soft, solid rock from underneath got added to the edges of the plates over millions of years.

Front

Patterns on this map tell us that . . .

Back

volcanic activity and earthquakes happened in similar areas.

Front

What is Earth’s outer layer like underneath the surface?

Back

Underneath both the soil and the ocean, Earth’s outer layer is made of hard, solid rock.

Front

What would Dr. Bailey and his team find between two plates that used to be next to each other?

Back

Soft, solid rock from underneath the plates rose and hardened, adding solid rock to the edges of both plates.