25.3 & 25.4

Question 1

What is the boundary that marks a density between layers?

Answer 1

Discontinuity

Question 2

How can discontinuity be identified?

Answer 2

Seismic waves

Question 3

What is a shadow zone?

Answer 3

Where no seismic waves been recorded

Question 4

What is another name for a shadow zone?

Answer 4

Dead zone

Question 5

What are the degrees from an epicenter that shadow zones fall?

Answer 5

Between 105 and 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

Solid due to the pressure

Question 8

What is the lithosphere?

Answer 8

The crust and the upper most mantle

Question 9

What is the asthenosphere?

Answer 9

A plastic like layer that the plates move on

Question 10

What metallic materials make up the core?

Answer 10

Iron and nickel

Question 11

What elements make up the mantle?

Answer 11

Calcium, Aluminum, Iron, And Magnesium

Question 12

A fluid’s resistance to flowing.

Answer 12

Viscosity

Question 13

Chemical compound, silica dioxide, a common ingredient in most magma and much of Earth’s crust.

Answer 13

Silica

Question 14

Small steep-sloped volcano with a short eruption cycle, composed of cinder, formed at vents of Earth’s crusts, often around the central vent of a larger volcano.

Answer 14

Cinder Cone Volcano

Question 15

Large, broad, flat volcano composed of layer upon layer of basaltic lava flow.

Answer 15

Shield Volcano

Question 16

Large and steep-sided volcano composed of layers of lava and ash.

Answer 16

Composite Volcano

Question 17

What is molten or liquid rocks stored inside Earth called?

Answer 17

Magma

Question 18

Where is the ring of fire located?

Answer 18

In the Pacific Ocean

Question 19

What forms when tectonic plates collide along subduction zones?

Answer 19

Volcanoes

Question 20

Which two specific locations can volcanic activity occur do to divergence?

Answer 20

Mid-Atlantic Ridge & East African Rift Valley

Question 21

Are hot spots stationary?

Answer 21

Yes, they are in a set location.

Question 22

What are created from hot spots?

Answer 22

Volcanic Islands (Hawaii)

Question 23

If a liquid has a higher viscosity is it going to run faster or slower?

Answer 23

Slower

Question 24

If a magma has a higher viscosity does it have more or less silica?

Answer 24

More silica

Question 25

What is Pyroclastic Material?

Answer 25

The solid material that erupts from a volcano.

Question 26

What is the smallest types of pyroclastic material?

Answer 26

Ash

Question 27

What are the largest types of pyroclastic material?

Answer 27

Blocks & Bombs

Question 28

what are the types of gasses that come from a volcano?

Answer 28

Water vapor, carbon dioxide, and sulfur dioxide

Question 29

How are volcanoes classified?

Answer 29

By size, shape, and the materials that erupt

Question 30

What are the 3 types of volcanoes?

Answer 30

Shield, Composite, & Cinder cone