Earth's Interior

What are the two main types of evidence to learn about the interior of Earth?

• guessing

• direct evidence from seismic waves

• x-ray

• direct evidence from rock samples

The speed of ​ (a)   and the paths they take give ​ (b)   clues about the ​ (c)   of the planet.

• seismic waves
• geologists
• structure

Tags

NGSS.MS-ESS2-2

NGSS.MS-PS4-2

The three main layers of Earth are the crust, the ________, and the core.

Holes drilled several kilometers into Earth's crust provide direct evidence about Earth's interior in the form of

• seismic waves

• rocks samples

• liquid iron

• volcanic eruption

What is the correct order (starting from the surface) of Earth's layers?

• crust, outer core, inner core, mantle

• mantle, outer core, inner core, crust

• crust, mantle, outer core, inner core

• outer core, inner core, crust, mantle

Using data from seismic waves, geologists have learned that Earth's interior is made up of several

• continents

• layers

• ridges

• trenches

Tags

NGSS.MS-ESS2-1

Which of Earth's layers is thickest?

• crust

• mantle

• outer core

• inner core

Earth's inner core is

• a dense ball of solid metal

• a layer of molte metal

• a layer of hot rock

• a layer of rock that forms Earth's outer skin

What part of Earth's interior do scientists believe moves to produce Earth's magnetic core?

• outer core

• inner core

• mantle

• crust

To study Earth's interior, geologists often rely on indirect methods, such as evidence from

• drill holes

• volcanos

• seismic waves

• ocean waves