Unit 2 Plate Motion Review

A team of geologists wants to study hard, solid rock under the surface of Earth. The team is considering drilling down in Saudi Arabia (1) or in the Arabian Sea (2). Where will the geologists find hard, solid rock?

• neither under 1 nor 2, because there is sand and gravel under both places

• neither under 1 nor 2, because there is water under both places

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

• only under 1, because Earth’s outer layer is made of hard, solid rock under continents but not under the ocean

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Where will geologists find hard, solid rock?

• neither under continents or oceans, because there is sand and water under both.

• neither under continents or oceans, because there is water under both places.

• only under the continents, but not under the oceans.

• under both continents and oceans, because Earth's outer layer is made of hard, solid rock.

Scientists often study cross sections to better understand what the inside of something looks like. If we took a cross section of a potted plant by cutting it vertically, what would the cross section look like?

• A

• B

• C

• D

Tags

NGSS.MS-LS1-2

Dr. Patel and her team have been using GPS to track two plates that are moving toward each other. Which diagram shows what is happening at the place where the plates are moving toward each other?

• Diagram A: Two plates are hitting each other, and the plates are breaking into pieces, creating sand.

• Diagram B: Two plates are pushing against each other, causing the edges to bend upward.

• Diagram C: One plate is going underneath the other plate and sinking into the soft rock below.

• Diagram D: One plate is going underneath the other plate and sinking into the ocean below.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Dr. Bailey and his team are studying two plates that are far apart from each other. However, these two plates used to be next to each other. Which diagram shows what Dr. Bailey and his team would find between these plates?

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

• Diagram B: A new plate from underneath filled in the gap that was created by the plates moving apart.

• Diagram C: Sand and dirt filled in the gap that was created by the plates moving apart.

• Diagram D: Ocean water filled in the gap that was created by the plates moving apart.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

What patterns can you see on this map?

• Earthquakes happen in similar places.

• Earthquakes and volcanoes happen in similar places on plate boundaries.

• Volcanoes happen in similar places.

• Volcanoes and earthquakes happen in this order: volcano, earthquake, volcano, earthquake, and so on.

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?

• 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.

• India and South Africa are parts of different plates. The plates floated away from each other across the ocean.

• India and South Africa are parts of different plates. The plates slowly moved apart as new plates from underneath got added between them over millions of years.

• India and South Africa are parts of different plates. The plates were sometimes pushed far apart by earthquakes, and soft, solid rock from underneath got added to the edges of the plates.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

What kind of plate movement created the Himalayan Mountains?

• convergence of oceanic crust with continental crust.

• divergence between two continental crustal plates.

• transform movement between oceanic and continental crustal plates.

• convergence of two plates composed of continental crust.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Which two plates are moving towards one another?

• Pacific and Australian

• American and African

• Cocos and Nazca

• North American and Eurasian

Which layer flows due to the heating and cooling of convection currents?

• asthenosphere
• crust
• lithosphere
• inner core