Earth's layer

Question 1

what are the 4 main layers of the earth?

Answer 1

crust, mantle, outer core, inner core

Question 2

outermost surface

Answer 2

crust

Question 3

light ant brittle

Answer 3

crust

Question 4

most earthquakes occur here

Answer 4

crust

Question 5

relatively flexible

Answer 5

mantle

Question 6

flows instead of fracturing

Answer 6

mantle

Question 7

fluid layer that contains iron

Answer 7

outercore

Question 8

What happens if the iron on the outer core flows?

Answer 8

it generates the earth’s magnetic field

Question 9

solid innermost layer of the earth

Answer 9

inner core

Question 10

how thick is the crust?

Answer 10

25 miles thick between continents, 6.5 miles thick beneath oceans

Question 11

made up of crust and moho

Answer 11

lithosphere

Question 12

the dividing line between the crust and the mantle

Answer 12

moho

Question 13

how many percent does the crust make up

Answer 13

1%

Question 14

what are the 2 types of crust?

Answer 14

continental (less dense), oceanic (very dense)

Question 15

Layer below the crust

Answer 15

mantle

Question 16

largest layer

Answer 16

mantle

Question 17

2 regions of the mantle

Answer 17

upper, lower

Question 18

outer layer of the mantle

Answer 18

athenosphere

Question 19

where convection currents happen

Answer 19

mantle

Question 20

made of mostly iron

Answer 20

core

Question 21

1/3 of earth’s mass

Answer 21

core

Question 22

core consists of.

Answer 22

fluid outer core, solid inner core