Earth's Layers Test Review

Select the THREE characteristics that describe the oceanic crust.

• made mostly of basalt

• thinner form of crust

• 5-10 km thick

• older form of crust

• mostly granite

Select the THREE characteristics that describe the asthenosphere.

• contains the crust and upper mantle

• contains convection currents

• contains the upper mantle only

• made of less rigid rock, like silly putty

• closer to Earth's surface than the lithosphere

Select the THREE characteristics that describe the mantle.

• rocks rise and sink through convection

• thickest of Earth's layers

• average temperature of 3000°F

• made of rock rich in nickel and lead

• thinnest of Earth's layers

Select the THREE characteristics that describe the inner core.

• made of solid nickel and iron

• made of liquid nickel and iron

• 1.250 km thick

• 2,300 km thick

• spins faster than Earth rotates

How is the oceanic crust different from the crust found on a continent?

• The oceanic crust is thicker than the continental crust.

• The oceanic crust is thinner than the continental crust.

• The oceanic crust is made out of nickel and the continental crust is made of iron.

• The oceanic crust is purple and thee continental crust is orange.

Your science teacher heats a beaker of water on a burner. She then adds rice to the heating water. The rice spins in the water in a circular motion. Which layer of Earth's crust does this model the best?

• atmosphere

• oceanic crust

• mantle

• litosphere

Scientists know a lot about Earth's layers, but we have never dug below the crust. How do seismic waves help us understand Earth's layers?

• We can ride the waves like those in the ocean.

• The waves cause vibrations that we can feel, showing where each layer begins / ends.

• We can see them in the air.

• The waves move through the earth and can only go through certain materials, showing where parts are solid / liquid.

Tags

NGSS.MS-PS4-2

What is the primary difference between the inner core and the outer core?

• The primary difference is their physical state.

• The primary difference is their composition.

• The primary difference is their location.

• The primary difference is their size.

What is the primary difference between the inner core and the outer core?

• The primary difference is their physical state.

• The primary difference is their composition.

• The primary difference is their location.

• The primary difference is their size.

How is the oceanic crust different from the crust found on a continent?

• The oceanic crust is denser and thinner.

• The oceanic crust is less dense and the same thickness as the continental crust.

• The oceanic crust is the same density but thicker.

• The oceanic crust is less dense and thicker.