Earths Internal Structure

Question 1

This is the outermost layer of the earth, this part which we step on, is made up of hard solid rock with soil on the topmost part this extends from the continental part of the earth to the oceanic part.

Answer 1

Crust

Question 2

This layer is divided into the upper mantle and the lower mantle this is not liquid it behaves like a plastic because the rocks are exposed in increasing pressure the mineral and chemical components may vary due to pressure

Answer 2

Mantle

Question 3

This is the inner part of the earth which consist mostly of iron with some amount of nickel this is subdivided into the liquid outer core and the solid inner core

Answer 3

Core

Question 4

What are the four compositional layers of the earth?

Answer 4

Crust
Mantle
Outer core
Inner core

Question 5

This is the rigid outer layer of the earth this includes the crust and the uppermost mantle.

Answer 5

Lithosphere

Question 6

This is below the lithosphere where the convection of molten rocks happens

Answer 6

Asthenosphere

Question 7

This is broken into fragments of large slab of rocks

Answer 7

Tectonic plates

Question 8

It is the result of differential heating when the materials in the mantle move downward near the core it will experience more heat

Answer 8

Convection current

Question 9

He is a german geophysis that theorized the continental drift theory

Answer 9

Alfred Wegener

Question 10

The continents were once joined as a single supercontinent that is called?

Answer 10

Pangea

Question 11

This explains the formation the movement and the changes of the outer rigid layers of earth

Answer 11

Plate tectonics

Question 12

He is an american geologist that theorized the seafloor spreading

Answer 12

Harry Hammond Hess

Question 13

This constantly forms new crustal materials usually from volcanic action

Answer 13

Seafloor spreading

Question 14

This is underneath the seafloor and rises and fills the gap forming new ocean floor

Answer 14

Magma

Question 15

This forms continuously at the crust of the mid-ocean ridge

Answer 15

New oceanic crust

Question 16

These are long high and continuous change of mountains that seem to run around earth

Answer 16

Oceanic ridges

Question 17

This is one such oceanic ridge that is located at the center of the atlantic ocean basin

Answer 17

Mid-atlantic ridge

Question 18

What are the three interactions of plate boundaries?

Answer 18

Divergent boundary
Convergent boundary
Transform boundary

Question 19

This boundary exist between two plates that move apart

Answer 19

Divergent boundary

Question 20

This boundary lies between two tectonic plates moving towards each other

Answer 20

Convergent boundary

Question 21

This boundary are two tectonic plates slide past each other horizontally

Answer 21

Transform boundary

Question 22

This is form as result of oceanic oceanic convergence

Answer 22

An island arc

Question 23

This is formed as a result of oceanic continental convergence

Answer 23

A volcanic arc

Question 24

It is the collision of two continental plates

Answer 24

Mountain ranges