Plate Motion Chapter 1 and 2

Dr. Choi and his team of geologist 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?

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

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

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

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

A team of geologists wants to study hard, solid rock under the surface of Earth. The team is considering drilling down in the North Atlantic Ocean (1) and in Sierra Leone (2). Where will the team 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 2, because Earth’s outer layer is made of hard, solid rock under continents but not under the ocean

Which statement best describes Earth’s outer layer underneath the surface in the image?

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

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

• Underneath both the soil and the ocean, Earth’s outer layer is made of sand and water

• Underneath the soil, Earth’s outer layer is made of water.

Dr. Steiner 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 D: One plate is going underneath the other plate and sinking into the ocean below

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

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

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

Which statement best describes Earth’s outer layer underneath the surface in the image?

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

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

• Underneath the soil, Earth’s outer layer is made of water.

• Underneath both the soil and the ocean, Earth’s outer layer is made of sand and water.

Dr. Mendoza 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 happened between these plates?

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

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

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

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

A team of engineers wants to study hard, solid rock under the surface of Earth. The team is considering drilling down in South Korea (1) and in the Yellow Sea (2). Where will the team find hard, solid rock?

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

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

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

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

A team of geologists has 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 C: Two plates are pushing against each other, causing the edges to bend upward.

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

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

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

Scientist 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?

• Diagram D

• Diagram B

• Diagram A

• Diagram C

Patterns on this map tells us that...

• Volcanic activity and earthquakes can cause damage and hurt people

• Volcanic activity and earthquakes happened in random locations all over the map.

• Volcanic activity and earthquakes' happened in the following order: volcanic activity, earthquake, volcanic activity, earthquake, and so on.

• Volcanic activity and earthquakes happened in similar areas.