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Worksheets6.E.2 NCFE Review: Structure of Earth
Total questions: 15
Worksheet time: 8mins
What process is responsible for the Atlantic Ocean becoming wider by a few centimeters each year?
one plate moving under the other plate
two plates meeting at a transform boundary
seafloor spreading along the Mid-Atlantic Ridge
the edges of the continents are subsiding
Which choice describes Earth’s crust?
a thick layer of rock floating on liquid metal
a group of continents floating on a large ocean
a warm layer of rock floating on a cold layer of rock
a thin layer of rock floating on a solid but fluid-like layer
Which most likely causes seafloor spreading?
earthquakes
divergent boundaries
convergent boundaries
transform fault boundaries
Which type of environment would contain nutrient-rich soil?
an environment with a low population of producers
an environment with a wet climate and many plants
an environment with a high population of consumers
an environment with a dry climate and few plants
Which best describes the density of Earth’s layers?
The crust is the most dense because it is the top layer.
The mantle is the most dense because it is the thickest layer.
The outer core is the most dense because it is the only liquid layer.
The inner core is the most dense because it is under the most pressure.
Which best describes Earth’s crust?
It is the thickest layer of Earth.
It is composed of several continental plates.
It contains layers of stationary rock.
It is more dense than the other layers of Earth.
Which statement best explains the role of environmental conditions in the formation of soil?
Areas near fresh or salt water produce wet, sandy soil.
Areas with high temperatures produce soil at a faster rate.
The rocks and climate of an area determine the type of soil.
The number of organisms living in the soil determine its type.
At the mid-ocean ridge, new oceanic crust is continually being produced. How does Earth’s size change as the new crust is produced?
Earth’s size is growing larger because new crust is being added next to old crust.
Earth’s size is growing smaller because the new crust pushes the continents closer together.
Earth’s size is unchanged because as new crust is produced, earthquakes occur breaking up the old crust.
Earth’s size is unchanged because as new crust is produced, old crust is forced down to the mantle where it melts.
Which best compares Earth’s crust and mantle?
The crust is thicker and less dense than the mantle.
The crust is thinner and less dense than the mantle.
The crust is thicker and more dense than the mantle.
The crust is thinner and more dense than the mantle.
This map shows the boundaries of Earth’s major tectonic plates. Which numbered area on the map represents the African Plate?
1
2
3
4
This circle graph shows that two common elements make up about 75% of a specific type of matter. Which type of matter does the circle graph MOST likely represent?
Earth’s atmosphere
living organisms
ocean water
Earth’s crust
The picture represents the formation of the Himalaya Mountains. Which two plates collided with each other to form the Himalaya Mountains?
Nazca and Eurasian
Indo-Australian and Eurasian
North American and Antarctic
South American and Indo-Australian
The map shows a boundary between two tectonic plates. Between which two tectonic plates is this boundary located?
Indo-Australian Plate and Pacific Plate
North American Plate and Pacific Plate
Indo-Australian Plate and Eurasian Plate
North American Plate and Eurasian Plate
Lithospheric plates have moved to form land formations on Earth’s surface. Which land formation occurs as a result of the plates folding upon one another?
a river
a volcano
an earthquake
a mountain range
What BEST describes the mantle of Earth?
a thin layer that is located on the surface
a solid layer made of iron and nickel
the largest layer between the crust and outer core
the smallest layer that is made up of molten rock
