25.3, 25.4

Question 1

What is the boundary that marks a density between layers?

Answer 1

Discontinuity

Question 2

How are discontinuity’s identified

Answer 2

Using seismic waves

Question 3

What are shadow zones?

Answer 3

Areas where seismic waves aren’t recorded

Question 4

Whats another name for shadow zone?

Answer 4

Dead zone

Question 5

Between which degrees do shadow waves fall?

Answer 5

105°- 140°

Question 6

Is the outer core a liquid or solid?

Answer 6

liquid

Question 7

Is the inner core a solid or liquid? Why?

Answer 7

Solid because the pressure

Question 8

What makes up the lithosphere?

Answer 8

Crust and upper most mantle

Question 9

What is the asthenosphere?

Answer 9

Plastic like layer which earths plates move on.

Question 10

Which elements make up the mantle.

Answer 10

Calcium, Aluminum, Iron and Magnesium

Question 11

which elements make up the core?

Answer 11

Iron and Nickle

Question 12

What is molten or liquid rock stored inside earth called?

Answer 12

magma

Question 13

where is the ring of fire located?

Answer 13

pacific ocean

Question 14

Which two specific locations have volcanic activity due to divergent plate boundaries?

Answer 14

East African rift

mid ocean ridge

Question 15

Are hot spots stationary

Answer 15

Yes

Question 16

What can hot spots create

Answer 16

Islands (The Hawaiian Islands)

Question 17

If the is high viscosity will the fluid flow more quickly or slowly?

Answer 17

slow

Question 18

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

Answer 18

More

Question 19

what is piroclastic marital?

Answer 19

Any solid material that erupts from a volcano

Question 20

What is the smallest type of piroclastic material?

Answer 20

Volcanic ash

Question 21

What is the largest type of piroclastic material?

Answer 21

volcanic bombs and blocks

Question 22

what are the types of gases that erupt?

Answer 22

water vapor, carbon dioxide and sulfur dioxide

Question 23

What is eruption style linked to?

Answer 23

Temperature and composition

Question 24

How are volcano’s classified?

Answer 24

Size, shape and materials that erupt

Question 25

What do cinder cones erupt?

Answer 25

high-temperature, gas-rich, basaltic lava

Question 26

what are the tree types of volcano

Answer 26

Shield, cinder cone and composite