Plate Techtonics

Question 1

outermost rigid layer of the earth

Answer 1

lithosphere

Question 2

plastic layer of the mantle on which pieces of the lithosphere move

Answer 2

Asthenospheasre

Question 3

2550 km thick strong, lower part of mantle

Answer 3

Mesosphere

Question 4

1,230 km thick solid, dense center of earth

Answer 4

Inner Core

Question 5

2200 km thick Liquid layer that lies beneath the mantle and surrounds the inner core

Answer 5

Outer Core

Question 6

the earth is mapped with ______ _____ from earthquakes

Answer 6

Seismic Waves

Question 7

as

Answer 7

Oceanic Crust

Question 8

as

Answer 8

Continental Crust

Question 9

the ratio of a mass of a substance to the volume of the substance

Answer 9

Density

Question 10

as

Answer 10

Alfred Wegener

Question 11

the hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations

Answer 11

Continental Drift

Question 12

the boundary foemed by the collision of two lithospheric plates

Answer 12

Convergent Boundary

Question 13

the boundary between two tectonic plates that are moving away from each other

Answer 13

Divergent Boundary

Question 14

the boundary between tectonic plates that are sliding past each other horizontally

Answer 14

Transform Boundary

Question 15

the process by which new oceanic lithosphere forms as magma rises toward the surface and solidifies

Answer 15

Sea-floor Spreading

Question 16

Greek for “all earth”

Answer 16

Pangaea

Question 17

the more northern of two supercontinents that formed part of the Pangaea supercontinent

Answer 17

Laurasia

Question 18

was a supercontinent that formed from the unification of several cratons

Answer 18

Gondwana

Question 19

an extinct genus of reptile from the Early Permian of southern Africa and South America

Answer 19

Mesosaurus

Question 20

is the largest and best-known genus of the extinct order of seed ferns

Answer 20

Glossopteris