Layers of the Earth

Question 1

Uppermost part of the Earth

Answer 1

Crust

Question 2

Granatic rocks, makes up the land and continents. Thick but less dense, old rocks.

Answer 2

Continental Crust

Question 3

Basaltic rock, makes up the ocean. Thinner and denser, young rocks

Answer 3

Oceanic Crust

Question 4

The rigid, solid, outermost part of the crust and the uppermost part of the mantle.

Answer 4

Lithosphere

Question 5

It is about 180km thick & contains hot molten rocks or magma.

Answer 5

Asthenosphere

Question 6

Semi-solid, rocky and very hot layer

Answer 6

Mantle

Question 7

What is the mantle composed of?

Answer 7

Ferro-magnesium silicate rocks.

Question 8

How thick is the mantle?

Answer 8

2900km

Question 9

From what temperature can the mantle reach? (—° to —°)

Answer 9

100° to 3700°

Question 10

What is the liquid layer of the Earth?

Answer 10

Outer Core

Question 11

What is the Outer Core composed of?

Answer 11

Molten nickel and iron

Question 12

How thick is the Outer Core?

Answer 12

2270km

Question 13

How thick is the Outer Core?

Answer 13

2270

Question 14

Layeof the Earth that is mostly composed of solid iron

Answer 14

Inner Core

Question 15

What is the center and the hottest layer of the Earth?

Answer 15

Inner Core

Question 16

Between crust snd upper mantle. “MOHO”

Answer 16

Mohorovicic Discontinuity

Question 17

Between lower mantle and outer core

Answer 17

Gutunberg Discontinuity

Question 18

Between the liquid outer core and the solid inner core

Answer 18

Lehmann Discontinuity

Question 19

What is the cause of earthquakes?

Answer 19

Seismic Plates

Question 20

What is used to define earthquakes?

Answer 20

Seismometer

Question 21

Which Crotian seismologist recognized the Mohorivicic Discontinuity?

Answer 21

Andrija Mohorivicic

Question 22

Which American seismologist recognized the Gutunberg Discontinuity?

Answer 22

Beno Gutenberg

Question 23

Which Danish seimologist recognized the Lehmann Discontinuity?

Answer 23

Inge Lehmann

Question 24

How much does the crust move in a year?

Answer 24

2.5cm

Question 25

The two types of force

Answer 25

Driving force and Resisting force

Question 26

Push tectonic plates toward or pulling away from each other.

Answer 26

Driving Force

Question 27

Rising heat from the mantle to the crust

Answer 27

Mantle Convection

Question 28

Subducting slab sinks into the mantle

Answer 28

Slab Pull

Question 29

One subducting underneath the other

Answer 29

Slab Suction

Question 30

Lithosphere is pushed up by the asthenosphere

Answer 30

Ridge Push

Question 31

Acts agaisnt the driving forces of plate tectonics

Answer 31

Resisting Force

Question 32

Resists movement of lithosphere plates

Answer 32

Drag Forces

Question 33

Opposing movents of plates moving past eachother

Answer 33

Transform Fault Resistance

Question 34

Heavy plates is pulled into the mantle, stopping slab pull

Answer 34

Collisional Resistance

Question 35

Resists all the forces in subduction zones

Answer 35

Slab Resistance