Layers of the Earth

Earth 1

100

What are the three main layers of Earth?

Crust, mantle, core 

200

This layer is the most dense

Core (Inner core) 

300

Which layer is warmer? Lithosphere or asthenosphere?

Asthenosphere 

400

The inner core is made of what two elements?

Iron and Nickel 

500

Name one piece of evidence for the structure of Earth, besides seismic evidence

Magnetic Evidence, Laboratory Experiments, Meteorites

Earth 2

100

What is the deepest layer we have been able to dig into? 

Crust 

200

This layer of Earth is the coolest 

Crust 

300

This is the thickest layer of the Earth 

Mantle 

400

What separates the Crust and the Mantle

Mohorovicic Discontinuity

500

describe the mechanical behavior of the asthenosphere

it behaves like a soft plastic (semi-solid or viscoelastic)

Earth 3

100

Which is thicker? Continental or oceanic crust?

Continental 

200

Meso means:

Middle 

300

Name the two types of crust

Continental and Oceanic 

400

Earth's magnetic field is caused by

The motion of iron and nickel in the outer core

500

this structural layer is brittle solid

lithosphere

Earth 4

100

What is the hot layer of rock between the crust and core? 

Mantle 

200

As you go deeper in the the Earth, what happens to the temperature?

It increases.

300

The crust and the upper part of the upper mantle is called:

Lithosphere

400

How do scientists know about the different layers of the Earth?

Through convection currents, seismic waves 

500

this layer is  the dense, metallic center of the planet made up of mainly iron

the inner core

Earth 5

100

Which layer of Earth is under the highest pressure? 

Inner core 

200

the inner core is _________, while the outer core is _________. 

solid, liquid

300

What causes the mechanical behavior of the Asthenosphere?

High temperature and pressure.

400

This layer makes up about 1/3 of the Earth's mass:

Core 

500

Three main elements making up the mantle

Oxygen (O), silicon (Si), and magnesium(Mg)