Inside the earth

Question 1

outermost, rigid layer of the earth

Answer 1

lithosphere

Question 2

plastic layer of the mantle

Answer 2

Asthenosphere

Question 3

strong, lower part of mantle

Answer 3

Mesosphere

Question 4

solid, dense center of Earth

Answer 4

Inner core

Question 5

liquid layer that lies beneath the mantle and surrounds the inner core

Answer 5

outer core

Question 6

an elastic wave in the earth produced by an earthquake

Answer 6

seismic waves

Question 7

is more dense then continental crust, made mainly of basalt

Answer 7

oceanic crust

Question 8

is less dense than oceanic crust, made mainly of granite

Answer 8

continental crust

Question 9

is a measure of how much mass is contained in a given unit volume

Answer 9

density

Question 10

made a hypothesis about continental drift

Answer 10

Wegener

Question 11

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

Answer 11

continental drift

Question 12

a boundary where 2 plates move towards each other

Answer 12

convergent boundary

Question 13

a boundary where 2 plates move away from each other

Answer 13

divergent boundary

Question 14

a boundary where 2 plates move pasat each other, creating a fault

Answer 14

transform boudary

Question 15

occurs when 2 oceanic plates pull apart and a new ocean floor is created

Answer 15

sea-floor spreading

Question 16

name of the single landmass that broke apart 200 million years ago and the continents went to there current location

Answer 16

pangaea

Question 17

was the northernmost of 2 continents that formed a pangaea 300 to 200 million years ago

Answer 17

laurasia

Question 18

was the sourthernmost of 2 continents the formed a pangaea 300 to 200 million years ago

Answer 18

gondwana

Question 19

an extinct genus of reptile that was on pangaea

Answer 19

Mesosaurus

Question 20

is the largest fern and best known genus of the extinct that was on pangaea

Answer 20

Glossopteris