Earth's Interior

Question 1

Which sources do scientists use to study the interior of Earth? Check all that apply.

Revolt · Accepted Answer

core samples; earthquakes; S waves; rock composition

Question 2

How do earthquakes help geologists understand Earth’s interior? During an earthquake, geologists use a machine called a to study seismic waves. P waves can pass through both solid and molten rock, but S waves can pass only through rock.

Revolt · Accepted Answer

Selection 1: seismograph; Selection 2: solid

Question 3

Which event would most likely occur if Earth did not retain the heat from its formation?

Revolt · Accepted Answer

The asthenosphere and outer core would solidify.

Question 4

Which phrases are true of only the mantle? Check all that apply.

Revolt · Accepted Answer

made of three layers; has a tarry layer; has a solid outer layer

Question 5

Use the drop-down menus to select the part of Earth best described by each phrase. May help create Earth’s magnetic field Can be thick or thin, depending on location Made of molten metal The location of Earth’s plates

Revolt · Accepted Answer

Selection 1: 4; Selection 2: 1; Selection 3: 4; Selection 4: 1

Question 6

Why are the properties of the asthenosphere important? Check all that apply.

Revolt · Accepted Answer

Earth’s plates float on the denser asthenosphere.; The asthenosphere allows Earth’s crust to move.

Question 7

Earth's lithosphere is made of slabs called plates. The movement within Earth's interior causes plates to move. How the plates behave affects the shape of Earth’s crust.Which statement describes the movement of plates 1 and 2?

Revolt · Accepted Answer

They are moving away from each other.

Earth's Interior Answers

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