ES Lesson 6

Question 1

Waves that are generated by the sudden movement of the plates

Answer 1

Seismic Waves

Question 2

Types of Seismic Waves

Answer 2

Body waves & Surface Waves

Question 3

a longitudinal or compressive wave

Answer 3

Primary Wave

Question 4

a transverse wave that shifts rocks towards the wave direction

Answer 4

Secondary Wave

Question 5

forms a horizontal motion, moves the ground from side to side

Answer 5

Love Wave

Question 6

forms a rolling motion, makes the ground move up and down and side to side

Answer 6

Rayleigh Wave

Question 7

the outermost chemical layer of the earth

Answer 7

crust

Question 8

two types of crust

Answer 8

continental & oceanic

Question 9

about 2900-3000km thick

Answer 9

mantle

Question 10

boundary between the crust and the mantle, also called as Moho

Answer 10

discontinuity

Question 11

hot materials are transferred to the lithosphere, cooler materials are brought down

Answer 11

convection current

Question 12

the process of plate movement driven by convection currents

Answer 12

slab pull

Question 13

the hottest and densest part of the earth

Answer 13

core

Question 14

boundary between the mantle and the core

Answer 14

gutenberg discontinuity

Question 15

boundary between the inner and outer core

Answer 15

bullen discontinuity