structure of the earth

Question 1

what is the inner core made of?

Answer 1

solid ball of iron/nickel

Question 2

why is the inner core very hot?

Answer 2

pressure and radioactive decay (contain elements such as uranium)

Question 3

what is the heat of the inner core responsible for?

Answer 3

earth’s internal energy

Question 4

what is outer core made of?

Answer 4

semi-molten iron/nickle

Question 5

what is the mantel mainly?

Answer 5

solid rocks high in silicon

Question 6

what is the top of the mantle?

Answer 6

the asthenosphere

Question 7

what state is the asthenosphere?

Answer 7

semi-molten

Question 8

why does the asthenosphere move?

Answer 8

due to convection currents

Question 9

how is the asthenosphere powered?

Answer 9

by heat from core

Question 10

what is above the asthenosphere?

Answer 10

lithosphere

Question 11

what is the lithosphere broken up into?

Answer 11

plates

Question 12

where is the majority of the lithosphere?

Answer 12

within the mantle

Question 13

what is the top of the lithosphere?

Answer 13

the crust

Question 14

what is the crust?

Answer 14

the thin top of the lithosphere?

Question 15

what crust is dense and destroyed by plate movement?

Answer 15

oceanic

Question 16

what crust is less dense and not destroyed by plate movement?

Answer 16

continental