Chapter 25.3 and 25.4

Question 1

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

Answer 1

Discontinuity

Question 2

How can discontinuity´s 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

Which two degrees does 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???

Answer 7

The inner core is a solid because of pressure

Question 8

What makes up the lithosphere????

Answer 8

The crust and the upper most mantle.

Question 9

What is the asthenoshpere?

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

What elements make up the core????

Answer 11

Iron and Nickel

Question 12

What is the measurement of a fluid´s resistance to flow??

Answer 12

Viscosity

Question 13

What is the chemical compound for silicon dioxide???

Answer 13

Silica

Question 14

What have short eruption cycles?????

Answer 14

Cinder Cone Volcanoes

Question 15

What are flat structures composed of a layer upon layer of lava flows?????

Answer 15

Shield Volcanoes

Question 16

What is large and steep-sided?????

Answer 16

Composite Volcanoes

Question 17

What is molten, or liquid rock stored inside earth?

Answer 17

Magma

Question 18

Were is the fire located?????

Answer 18

Pacific Ocean

Question 19

What is created when tectonic plates collide along the subduction zone?????

Answer 19

Volcanoes

Question 20

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

Answer 20

Mid Atlantic Ridge And East African Ridge

Question 21

Are hot spots stationary???

Answer 21

yuh

Question 22

What can by created in hot spots???

Answer 22

Islands (Hawaii)

Question 23

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

Answer 23

Slowly

Question 24

If magma has high viscosity will it contain 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???

Answer 26

Volcanic Ash

Question 27

What is the largest type of pyroclastic material???

Answer 27

Blocks and bombs

Question 28

What are the types of gases that erupt from volcanoes???????

Answer 28

Water Vapor, Carbon Dioxide, and Sulfur Dioxide

Question 29

How are volcanoes classified?????

Answer 29

Size, Shape, the materials that erupt

Question 30

What are three types of volcanoes????

Answer 30

Cinder Cone Volcano, Shield Volcano, Composite Volcano