Chapter 3 Study Guide

Question 1

What is a Volcano?

Answer 1

A type of mountain where molten material erupts from a weak spot in the crust and onto the surface

Question 2

What is the Ring of Fire?

Answer 2

A volcano belt ormed by many volcanoes in the Pacific Ocean

Question 3

What is a Island Arc?

Answer 3

A bunch of islands formed by erupting volcanoes

Question 4

Is Density under Physical or Chemical Properties?

Answer 4

Physical

Question 5

Is boiling point under Physical or Chemical Property?

Answer 5

Phyical

Question 6

is the ability for a substance to burn under Chemical or Physical Property?

Answer 6

Chemical

Question 7

Is Hardness for a substance under chemical or physical property?

Answer 7

Physical

Question 8

Is the Ability to react with other substances a physical or chemical property?

Answer 8

Chemical

Question 9

Is the Magnetic Quality of A substance a physical or chemical property?

Answer 9

Chemical

Question 10

Why is it helpful to know hte phisical and chemical properties of a substance?

Answer 10

Because we can use the information to help identify it and predict how it will behave

Question 11

Explain why molasses has a higher viscosity than water?

Answer 11

because it is way thicker and weighs a little bit more and it is also slower than water when if flows

Question 12

What is the difference in silica content and viscosity between light colored and dark colored magma?

Answer 12

light colored lava has about 1/3 more Silica than dark colored and has a higher viscosity while dark colred has less Silica content and has higher viscosity

Question 13

How does temperature affect the vicosity of magma?

Answer 13

the hotter the temperature, the lower the viscosity

Question 14

a substance made up of 2 or more elements that have been chemicallly combined is called a ______

Answer 14

compound

Question 15

a ________ is a substance that can not be broken down into other substances

Answer 15

Element

Question 16

what is fast moving, hot lava that has low viscosity?

Answer 16

Pahoehoe

Question 17

What is Lava that is cooler and slower moving?

Answer 17

Aa

Question 18

What does it mean if something has low viscosity?

Answer 18

It flows easily and is runny

Question 19

What does it mean if something has high viscosity?

Answer 19

it i thick and sticky and slow

Question 20

As temperature increases, viscosity _____________?

Answer 20

decreases

Question 21

What is blocky lava?

Answer 21

The slowest type of lava and most viscosity; barely moves

Question 22

What is Rhyolite?

Answer 22

A type of igneous Rock; haas high silica, light colored, and high viscosity

Question 23

What is Basalt?

Answer 23

Type of Igneous Rock; has low silica, dark lava, nad has a low viscosity

Question 24

Why does magma in the mantle rise through the crust above it?

Answer 24

Because there is area pressure and it wants to shoot out anywhere it can

Question 25

As magma rise toward the surface what happens to the gases it it and why?

Answer 25

Because the gases expand and form bubles because the pressure of the magma is decreasing

Question 26

What is a cinder Cone Volcano

Answer 26

A small, gingle vent volcano that erupts cinder, ash, and rock; steep, made from cinder, ash, and bombs, and has a short eruption life span

Question 27

what is a composite volcano?

Answer 27

a volcano with steep sides and is somewhat symmetrical, has explosive eruption, cone shaped, taller than cinder cone, less frequent eruptions

Question 28

what is a shield volcano

Answer 28

A volcano that has large, broad sides, has a fluid lava flow, gentle slopes, quiet eruption, has bbalsaltic lava and the largest type of volcano

Question 29

What is a Lava Plateau?

Answer 29

steep, tall, made of lava and rock, andless then 500 meters talll

Question 30

what is a caldera

Answer 30

forms when a volcano collapsed, resulting in a large bowl shaped hole

Question 31

what is a neck?

Answer 31

when magma hardens inside the volcanoes pipe

Question 32

what is a sill?

Answer 32

when magma squeeques its war into layers of horizontal rock

Question 33

what is a batholith?

Answer 33

a mass of rock that forms then cools inside the volcano

Question 34

what are the 3 types of geothermal activity

Answer 34

hot springs, geysers, and geothermal energy