Chapter 25.3 and .4

Question 1

What is the boundaries that marks the density change between layers?

Answer 1

Discontinuity

Question 2

How is Discontinuity identified?

Answer 2

Using Seismic waves

Question 3

What is a shadow zone?

Answer 3

Where No seismic waves have been recorded

Question 4

Another term for shadow zone?

Answer 4

Deadzone

Question 5

What are the degrees that shadow zone fall between

Answer 5

105 and 140

Question 6

Is the outer core a solid or a liquid?

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

The crust and uppermost mantle

Question 9

What is the Asthenosphere?

Answer 9

A plastic-like layer which earth plates moves.

Question 10

Which elements make up the mantle?

Answer 10

1. Calcium
2. Aluminum
3. Iron
4. Magnesium

Question 11

Which elements make up the core?

Answer 11

1. Nickel

2. Iron

Question 12

The measure of a fluid’s such as lava, resistance to flow?

Answer 12

Viscosity

Question 13

The chemical compound silicon dioxide,SiO2,which is common ingredients in most magma?

Answer 13

Silica

Question 14

Tends to be small, heights in the hundreds of meter range, and have short eruptions cycles?

Answer 14

Cinder cone Volcanoes

Question 15

board,flat structures composed of layer upon of lava flows?

Answer 15

Shield Volcanoes

Question 16

Large and steep-sided,often thousands of meters high and tens of kilometers across the base, and composed of layer of both lava and ash

Answer 16

Composite Volcanoes

Question 17

What is molten, or liquid, rocks that is stored in earth called?

Answer 17

Magma

Question 18

Where is the Ring of Fire located?

Answer 18

Pacific ocean

Question 19

What form when tectonics plate collide along subduction zones?

Answer 19

Volcanoes

Question 20

What two specific locations have volcanic activity due to divergent

Answer 20

1,East-African rift valley

2.Mid Atlantic ridge

Question 21

Are hot spots stationary?

Answer 21

Yes

Question 22

what are created by hot spots

Answer 22

Islands ex: Hawaii islands

Question 23

If a viscosity is high is it going to flow slower of faster?

Answer 23

Slower

Question 24

If magma has a high viscosity is it going to have more or less silica?

Answer 24

More

Question 25

What is pyroclastic material?

Answer 25

Any solid material that erupts from a volcano

Question 26

What is the smallest type of pyroclastic material?t

Answer 26

Ash

Question 27

What is the biggest Pryoclastic Materials?

Answer 27

Blocks and bombs

Question 28

What are the gases that come from volcanoes

Answer 28

Water vapor
carbon dioxide
Sulfur dioxide

Question 29

How are volcanoes are classified

Answer 29

1.Size
2.shape
3,materials that erupt from them

Question 30

What are the 3 types of volcanoes

Answer 30

Cinder cone volcano
Shield Volcano
Composite volcano