Chapter 25.3 and 25.4

Question 1

How can discontinuity be identified?

Answer 1

seismic waves

Question 2

what is the boundary that marks the density change between layers?

Answer 2

discontinuity

Question 3

what are shadow Zones?

Answer 3

where no seismic waves are reported

Question 4

what is another name for shadow zone?

Answer 4

dead zone

Question 5

between which two degrees do shadow zones fall between?

Answer 5

105% to 140%

Question 6

Is the outer core a solid or liquid ?

Answer 6

liquid

Question 7

Is the inner core a solid or liquid? why.

Answer 7

is it a solid because of the pressure.

Question 8

what make up the lithosphere?

Answer 8

the crust and uppermost mantle

Question 9

what is the asthenosphere?

Answer 9

plastic-like layer which Earth’s plates move on

Question 10

which elements make the Mantle?

Answer 10

calcium
aluminum
iron
magnesium

Question 11

which element make up the core?

Answer 11

iron

nickle

Question 12

The measurement of a fluid’s resistance to flow.

Answer 12

Viscosity

Question 13

The chemical compound silicon dioxide , SiO2, which is a common ingredient in most magma.

Answer 13

Silica

Question 14

What tends to be small , have height in the hundreds of meter range, and have short eruption cycles?

Answer 14

Cinder cone Volcanoes

Question 15

They are broad, flat structures composed of layer upon layer of lava flows.

Answer 15

Shield volcanoes

Question 15

Large and steep-sides, often thousands of meters high and tens of kilometers across the base, and composed of layers of both lava and ash.

Answer 15

Composite volcanoes

Question 16

what is molten or liquid, rocks stored inside Earth?

Answer 16

Magma

Question 17

where is the ring of fire located?

Answer 17

pacific ocean

Question 18

what is created when tectonic plates collide along the subduction zones ?

Answer 18

volcanoes

Question 19

what are two specific examples of volcanic activity due to divergences.

Answer 19

East African rift valley

mid Atlantic ridge

Question 20

Are Hotsport stationary?

Answer 20

Yes, they do not move only the plate above it moves

Question 21

what are created from Hotspots?

Answer 21

Island (Hawaii, Maui, Oahu, Molokai,and Kauai

Question 22

if a liquid has a higher viscosity will it flow more quickly or more slowly?

Answer 22

slowly

Question 23

If magma has high viscosities will it contain more silica or less silica?

Answer 23

it will contain more

Question 24

what is Pyroclastic material?

Answer 24

any solid material that erupts for a volcano

Question 25

what is the smalls pyroclastic material?

Answer 25

volcanic ash

Question 26

what is the largest type pyrclastic material?

Answer 26

volcanic blocks and bombs

Question 27

what are types of gases that erupt from volcanoes ?

Answer 27

water vapor
carbon dioxide
sulfur dioxide

Question 28

how are volcanoes classified?

Answer 28

size
shape
materials that they erupt

Question 29

what are the 3 types of volcanoes?

Answer 29

cinder cone
composite
and shield