1st Quarter, Lesson 3: Volcano

Question 1

What is a Volcano?

Answer 1

It is an opening in the Earth’s crust that allows molten rock, gases and debris to escape to the surface/

Question 2

What are the different types of Magma?

Answer 2

Basaltic Magma
Andesitic Magma
Rhyolitic Magma

Question 3

This magma is high in Iron, Magnesium, Calcium and low in Potassium and Sodium

Answer 3

BASALTIC

Question 4

This magma is intermediate in Iron, Magnesium, Calcium, Potassium and Sodium

Answer 4

ANDESITIC

Question 5

This magma is low in Iron, Magnesium, Calcium and high in Potassium and Sodium

Answer 5

RHYOLITIC

Question 6

This magma has the weight percentage of 45-55

Answer 6

BASALTIC

Question 7

This magma has the weight percentage of 55-65

Answer 7

ANDESITIC

Question 8

This magma has the weight percentage of 65-75

Answer 8

RHYOLITIC

Question 9

This is the resistance to flow (opposite of fluidity).

Answer 9

Viscosity

Question 10

It primarily depends on the composition of the magma and temperature.

Answer 10

Viscosity

Question 11

Lower temperature magma have ______ Viscosity than higher temperature magmas.

Answer 11

Higher

Question 12

Viscosity _____ with increasing temperature of the magma.

Answer 12

decreases

Question 13

This magma has 1,000-1,200 degree Celsius

Answer 13

BASALTIC

Question 14

This magma has 800-1,000 degree Celsius

Answer 14

ANDESITIC

Question 15

This magma has 650-800 degree Celsius

Answer 15

RHYOLITIC

Question 16

Nonexplosive eruptions are typical of _____ magmas which have low Viscosities and low gas contents.

Answer 16

Basaltic-to-Andesitic

Question 17

Explosive eruptions are typical of _____ magmas which have high Viscosities and high gas contents.

Answer 17

Andesitic-to-Rhyolitic