Earth's Interior Quizizz

From your reading assignment the other day, you read that scientists know what the interior of the earth looks like from doing what?

• Digging down through layers

• Making educated guesses

• Studying other planets

• Studying earthquakes and seismic waves.

One theory of why earth has layers is because all of the layers have different densities. All of the heavier materials sank to the center of the earth while all of the less dense materials accumulated around the core.

• True

• False

Which layer contains most of earth's mass?

• crust

• mantle

• outer core

• inner core

With increasing depth below Earth's surface

• rocks get more dense

• rocks density does not change

• rock density first increases, then decreases again

• rock density first decreases then increases again

Which layers make up the lithosphere?

• crust, mantle, and core

• bottom part of the upper mantle

• crust, moho, and upper mantle lithosphere

• the lithosphere does not exist

Which layers make up the asthenosphere?

• Crust, mantle, and core

• Bottom part of the upper mantle

• Only the crust

• The asthenosphere does not exist.

Which of the following statements is false?

• The asthenosphere lies beneath the lithosphere

• the asthenosphere is less dense than the lithosphere

• the asthenosphere is partially melted rock

• the asthenosphere is more dense than the lithosphere

The crust is a layer of solid rock that includes both dry land and the ocean floor.

• True

• False

Which of the following statements about the Earth's core is true?

• The inner core and outer core are both liquid.

• The inner core and outer core are both solid.

• The inner core is liquid and the outer core is solid.

• The inner core is solid and the outer core is liquid.

The ___________ is older, thicker and less dense than the _________________.

• Continental crust; oceanic crust

• Oceanic crust; continental crust

• crust; moho

• mantle; outer core