Inferred Properties of Earth's Interior

The inner most physical layer of the earth that contains the solid part of the core is called

• lithosphere

• asthenosphere

• mesosphere

• outer core

• inner core

During Earth's formation, the force of gravity pulled high-density materials toward the center and materials with low densities were pushed toward the surface in a process called

• differentiation

• materialism

• gravitationalism

• radioactive decay

True or False? Earth's core is divided into three layers based on physical properties.

• Earth's core is divided into three layers based on physical properties.

• Earth's core is divided into two layers based on physical properties.

• True

• False

True or False? The mesosphere is a physical layer and part of the Earth's mantle.

• The mesosphere is a physical layer and part of the Earth's mantle.

• The mesosphere is a physical layer and part of the Earth's core.

• True

• False

True or False? The lithosphere is composed of the top part of the mantle and the all of the crust.

• The lithosphere is composed of the top part of the mantle and the all of the crust.

• The lithosphere is composed of the top part of the crust and the all of the mantle.

• True

• False

Tags

NGSS.MS-ESS2-1

True or False? Scientists use seismic waves to study Earth's interior.

• True

• False

• Scientists use seismic waves to study Earth's interior.

• Scientists use ocean waves to study Earth's interior.

Tags

NGSS.MS-PS4-2

Which of the following is a source of heat in Earth's interior?

• earthquakes

• solar radiation

• seismic waves

• radioactive decay

How can scientists obtain direct samples of Earth's mantle?

• volcanic eruptions can bring melted rock onto the surface that cools into new rock

• seismic waves that pass through Earth bring mantle rocks to the surface

• certain meteorites bombard Earth and may represent the composition of the mantle

• volcanic eruptions can bring solid chunks of rock from Earth's mantle to Earth's surface

Which of the following processes generated heat during Earth's formation and is still a source of heat in Earth's interior today?

• solar radiation

• seismic waves

• radioactive decay

• the greenhouse effect

Tags

NGSS.HS-ESS2-3

Seismic waves travel faster through rigid rock than through flexible rock. How would you expect seismic waves speeds to change as they travel from the lithosphere to the asthenosphere?

• Overall, both P waves and S waves would increase in speed.

• Overall, both P waves and S waves would decrease in speed.

• P waves would decrease in speed and S waves would disappear.

• P waves would increase in speed and S waves would decrease in speed.

Tags

NGSS.MS-PS4-2