Tectonics

Question 1

From outermost to innermost, what are the 4 parts that make up the earth’s structure?

Answer 1

Crust, mantle, outer core, inner core

Question 2

What is the thinnest layer?

Answer 2

The crust

Question 3

How thick is the crust?

Answer 3

The earth’s crust is between 5 and 70 km thick

Question 4

What is the crust made up of?

Answer 4

Solid rock broken up into tectonic plates

Question 5

What is the thickest layer?

Answer 5

The mantle

Question 6

What moves the mantle?

Answer 6

Convection currents

Question 7

How hot is the mantle

Answer 7

Nearer to the crust it is 1000 degrees celcius but nearer to the outer core it is 3700 degrees

Question 8

What is it made up of

Answer 8

Semi molten rock (semi liquid). Solid rock that can flow

Question 9

What is it made up of

Answer 9

Semi molten rock (semi liquid). Solid rock that can flow

Question 10

What is the outer core made up of?

Answer 10

Semi-liquid Iron

Question 11

How hot is the outer core?

Answer 11

3700-5000 degrees

Question 12

How hot is the outer core?

Answer 12

3700-5000 degrees

Question 13

How thick is the outer core?

Answer 13

Approximately 2700km thick

Question 14

Why is the outer core so important?

Answer 14

The outer core is so important because it is where the earths magnetic field is formed, which protects us from solar winds and allows life

Question 15

How thick is the inner core?

Answer 15

The inner core is approximately 1250km thick

Question 16

How hot is the inner core?

Answer 16

The inner core has temperatures that rise over 5000 degrees celcius.

Question 17

What is the earth’s inner core made up of?

Answer 17

It is mainly made up of iron and nickel