chapter 25.3 + 25.4

Question 1

What is the boundary which marks the density change between layers?

Answer 1

Discontinuity

Question 2

How can Discontinuities be identified?

Answer 2

Seismic waves

Question 3

What are shadow zones?

Answer 3

Areas where no seismic waves are recorded

Question 4

What is another term for “shadow zones”?

Answer 4

Dead zone

Question 5

Between which 2 degrees do shadow zones fall between?

Answer 5

105 and 140 degrees

Question 6

Is the outer core a solid or a liquid?

Answer 6

Liquid

Question 7

Is the inner core a solid or a liquid? Why?

Answer 7

solid because of the pressure

Question 8

What makes up the lithosphere?

Answer 8

The crust and the upper most mantle

Question 9

What is the Asthenosphere?

Answer 9

Plastic like layer which Earth’s plates move on

Question 10

Which elements make up the mantle?

Answer 10

Calcium, Aluminum, Iron, and Magnesium

Question 11

What elements make up the core?

Answer 11

Iron and Nickel

Question 12

What is the measurement of a fluids resistance

Answer 12

Viscosity

Question 13

What is a most common compound of magma?

Answer 13

Silica

Question 14

A type of volcano with short eruption cycles and tend to be small

Answer 14

Cinder cone volcanoes

Question 15

what type of volcano is a broad, flat structures composed of a layer upon later of lava flow

Answer 15

Shield volcanoes

Question 16

The type of volcano that is large and steep-sides, often composed of lava and ash

Answer 16

Composite volcanoes

Question 17

What is molten or liquid, rocks stored inside Earth?

Answer 17

Magma

Question 18

Where is the Ring of Fire located?

Answer 18

Pacific Ocean

Question 19

What is created when tectonic plates collide along subduction zones?

Answer 19

Volcanoes

Question 20

What are two specific examples of volcanic activity due to divergents?

Answer 20

mid-atlantic Ridge/East african Rift valley

Question 21

Are hotspots stationary?

Answer 21

Yes, only the plates above it move

Question 22

What is created from hotspots?

Answer 22

Islands

Question 23

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

Answer 23

It would flower more slowly

Question 24

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

Answer 24

It would have more

Question 25

What is Pyroclastic Material?

Answer 25

Any solid material that is erupted from a volcano

Question 26

What is the smallest type of Pyroclastic material?

Answer 26

Ash

Question 27

What are the largest type of Pyroclastic material?

Answer 27

blocks and bombs

Question 28

What are the type of gases that come from a volcano

Answer 28

Water vapor, Carbon Dioxide, Sulfur Dioxide

Question 29

How volcanoes are classified

Answer 29

Size, shape, and materials that erupt