WorksheetsEarth's Layers
Total questions: 35
Worksheet time: 18mins
Earth can be divided into three layers: the core, the mantle, and the crust. How are these three layers identified?
by their plate tectonics
by their structural features
by their physical properties
by their chemical composition
Tristan drew a simple model showing three layers of Earth. His drawing is shown. What layers of Earth did Tristan include in his drawing?
the physical layers
the structural layers
the atmospheric layers
the compositional layers
The diagram shows Earth divided into three layers. What did scientists use to decide how to divide Earth into these three separate layers?
plate tectonics
physical properties
chemical composition
structural characteristics
Madelyn drew a diagram of Earth showing one way that scientists have divided it. She included the core, the mantle, and the crust. Madelyn divided her diagram into three layers based on which of the following?
relative density
physical structure
geographical location
chemical composition
Scientists divide Earth into three main layers. Each layer has a different chemical composition. Which is the innermost layer of Earth?
Earth’s innermost layer is the core.
Earth’s innermost layer is the asthenosphere.
Earth’s innermost layer is the lithosphere.
Earth’s innermost layer is the mantle.
Which of these answers best describes the core?
the innermost part of Earth below the mantle
the solid outer layer of Earth above the mantle
the hot, slow-flowing layer of material beneath the crust
the layer of Earth on which the tectonic plates move
What COMPOSITIONAL LAYER would you travel through in the exact center of Earth?
core
crust
lithosphere
mesosphere
Imagine you could travel in a straight line through Earth from a point on one side and come out on the other side. What compositional layer would you travel through in the exact center of Earth?
core
crust
lithosphere
mesosphere
The layers are divided according to their chemical compositions. Based on the diagram, which of these statements is CORRECT?
The mantle has more volume than the crust has.
The crust has the greatest mass of any of the layers.
The core is located between the crust and the mantle.
The crust is denser than either the core or the mantle.
The three compositional layers of Earth are the core, the mantle, and the crust. Which phrase best describes the crust?
the innermost layer of Earth’s interior below the mantle
the thin and solid outermost layer of Earth
the hot, slow-flowing layer of Earth’s interior above the core
the layer of Earth on which the tectonic plates move
Which compositional layer of Earth is the thinnest?
the inner core
the outer core
the crust
the mantle
The layers are divided according to their chemical composition. Choose the letter or letters that best identify the mantle.
A
B
A & B
B & C
Earth has three main compositional layers, one of which is the mantle. Which answer describes the mantle?
the thin and solid outermost layer
the innermost layer of iron and nickel
the hot layer of rock between the crust and the core
the liquid layer that encloses a solid ball of iron and nickel
Earth is divided into compositional layers based on chemical composition. Which compositional layer is a hot, convecting layer of rock?
core
crust
mantle
plate
Earth can be divided into five layers: the lithosphere, the asthenosphere, the mesosphere, the outer core, and the inner core. Which properties do scientists use to make these divisions?
compositional properties
physical properties
chemical properties
elemental properties
Scientists divide Earth into these layers based on what properties?
core properties
physical properties
chemical properties
atmospheric properties
Earth is divided into three compositional layers and five physical layers. The lithosphere is one of the physical layers. The lithosphere includes some or all of which two compositional layers?
core and crust
mantle and core
crust and mantle
core and mesosphere
Which letter represents the lithosphere?
A
B
D
E
Earth’s physical layers correspond to Earth’s compositional layers. Which part of the mantle is also part of the lithosphere?
the fluid, hot part
the rigid upper part
the soft moving part
the lower stationary part
To which layer of Earth does this part belong?p
outer core
lithosphere
asthenosphere
mesosphere
Earth has five layers based on physical properties: the inner core, the outer core, the mesosphere, the asthenosphere, and the lithosphere. Which of these layers do the tectonic plates move on top of?
outer core
lithosphere
asthenosphere
mesosphere
The asthenosphere is the part of the mantle on which the tectonic plates move. Which of these statements best describes a characteristic of the asthenosphere that allows the tectonic plates to move?
It is soft.
its rigid (hard)
its permiable
its porous
Which letter represents the asthenosphere, the soft layer on which the tectonic plates move?
A
B
C
D
The diagram below shows a cross section of part of Earth.
Which letter represents the asthenosphere?
A
B
C
D
Scientists have identified five physical layers that compose Earth. Which layer is the slow-flowing lower part of the mantle?
outer core
lithosphere
mesosphere
asthenosphere
Which letter represents the mesosphere?
A
B
C
E
Which letter represents the mesosphere?
A
B
C
E
Earth is divided into five physical layers. With which two layers is the mesosphere in contact?
the lithosphere and outer core
the lithosphere and inner core
the asthenosphere and inner core
the asthenosphere and outer core
The innermost physical layers of Earth are the inner core and outer core. Which two metals are the inner and outer core mostly made of?
lead and iron
iron and nickel
lead and nickel
nickel and mercury
How is the outer core of Earth different from the inner core?
The outer core is solid, and the inner core is liquid.
The outer core is liquid, and the inner core is solid.
The outer core is made of nickel, and the inner core is made of iron.
The outer core is made of iron, and the inner core is made of nickel.
Earth’s core is made up of an inner core and an outer core. Which of these statements is true of the inner core but not the outer core?
It is solid.
It is liquid.
It contains iron.
It contains nickel.
Which is one type of evidence that geologists usually study?
location of Earth in outer space
waves that move through Earth
interactions between living things on Earth
diversity of life found on Earth
How do geologists study direct evidence of Earth’s interior?
by collecting drill core samples of Earth’s crust
by measuring seismic wave activity
by analyzing how living things survive
by recording changes in climate patterns
Sophia was studying with Maalik about the layers of the Earth. They were given several different statements about the layers.
Which statement about the layers would they identify as correct?
The outer core is less than 70 km in thickness.
The crust assists in forming Earth’s magnetic field.
The mantle is denser than the crust.
Pressure increases when moving from the core to the crust.
Study the diagram showing the range of temperature in the Earth’s layers.
Which temperature most likely corresponds to the asthenosphere?
1,613°C
2,521°C
3,628°C
6,217°C
