definitions

Question 1

crust

Answer 1

thin layer of solid rock that makes up earths outermost layer

Question 2

mantle

Answer 2

a hot thick layer of solid and partly melted rock

Question 3

outer core

Answer 3

a dense hot region that is between the mantle and inner core. mostly made up of liquid iron and some nickel

Question 4

pangaea

Answer 4

the name of a hypothetical supercontinent proposed by alfred wegener

Question 5

mid ocean ridge

Answer 5

a underwater mountain range that is about 50 000 km long and runs through the middle of the oceans

Question 6

continental crust

Answer 6

parts of earth that only have continents on them

Question 7

oceanic crust

Answer 7

parts that only have ocean floor on then

Question 8

inner core

Answer 8

a large ball of iron and nickel

Question 9

theory of plate tectonics

Answer 9

the surface of earth consists of about a dozen large plates that are continually moving.

Question 10

theory of the continental drift

Answer 10

wegener said that over time the pieces of pangaea separated forming separate continents. he also said the continents were still moving or “ drifting “