Earth's Interior

Question 1

• A dense and thin crust layer that lies under the ocean basins
• Consists primarily of basalt rocks

Answer 1

Oceanic Crust

Question 2

• Earth is divided into three distinct layers
• These layers are composed of the thin outside crust a fluid region in the middle wherein Earth’s mass is concentrated, and a solid inner core (with an outer core made up of molten metals).

Answer 2

Earth’s Interior

Question 3

• Outermost layer of the earth
• It is the layer made up of the oceanic and continental crust

Answer 3

Crust

Question 4

• A thicker and lighter (less dense)
• Made up of granite and andesite rocks

Answer 4

Continental Crust

Question 5

Due to it’s less dense composition this crust always float over it or on top of it

Answer 5

Continental Crust floats over the oceanic crust

Question 6

• Layer beneath the crust
• Contributing to 67% of the total mass of earth
• Made up of solid rock and lies between the core and the crust

Answer 6

Mantle

Question 7

Process where the heat comes from the core and travels through the atoms by rapid collision with one another

Answer 7

Conduction

Question 8

Process where caused by heat currents that allow materials near the core are heated and particles move fast

Answer 8

Convection

Question 9

• Inner part of the earth
• Makes up of 31% Earth Composition
• First one to be formed during early years of earth
• Made up of Iron and Nickel Alloy
• Source of planet’s internal heat and the reason why we have a magnetic field

Answer 9

Core

Question 10

Five Mechanical Layer In Order Highest to Lowest

Answer 10

Lithosphere
Asthenosphere
Mesophere
Outer Core
Inner Core

Question 11

• Composed of the crust and the upper mantle
• It is solid, rigid and brittle, extending to about 100km in depth

Answer 11

Lithosphere

Question 12

Lithosphere has the tendency to break under pressure and mechanical interaction which is responsible for?

Answer 12

Earthquake

Question 13

• Responsible for the motion of tectonic plates
• Approximately 200 km in depth below the surface

Answer 13

Asthenosphere

Question 14

• Lies a region of increased pressure where the flow ceases
• Beneath the asthenosphere

Answer 14

Mesophere

Question 15

• External part of the core
• Region is liquid in form and is composed mainly of an iron nickel alloy
• Responsible for the magnetic field generation of the earth

Answer 15

Outer Core

Question 16

• Beneath the outer core
• Made up of very dense and heavy iron and nickel materials
• Intense pressure and extremely high temperature do not affect it due to it’s composition

Answer 16

Inner Core