science quiz 1 3rdqtr

Question 1

Type of volcanic eruption that rapidly moves down like an avalanche (vicious lava)

Answer 1

Pelean

Question 2

What type of volcano (according to shape) is pinatubo

Answer 2

Composite/Stratovolcanoes

Question 3

Type of volcanic eruption that can reach other countries because of its power. It ejects ash and gases that form an eruption column. These ash and gases are carried by the wind and fall back to earth’s surface.

Answer 3

Plinian

Question 4

the type of volcano that has erupted once in 10k years

Answer 4

active

Question 5

Has a symmetrical cone.

Answer 5

Composite/Stratovolcanoes

Question 6

Molten rock that is still beneath the Earth’s surface.

Answer 6

Magma

Question 7

The opening through which magma, gases, and ash escape.

Answer 7

Vent

Question 8

Most abundant type of volcano, has a steep slope.

Answer 8

Cinder cone/scoria cone

Question 9

A bowl-shaped depression around the main vent, formed by explosive eruptions.

Answer 9

Crater

Question 10

What does PHIVOLCS stand for

Answer 10

Philippine Institute of Volcanology and Seismology

Question 11

how do volcanoes form?

Answer 11

magma creates pressure, raising cracks
magma reaches surface
ejects lava
lava cools down
magma continues to eject lava, getting bigger and bigger

Question 12

Type of volcanic eruption That has tall eruptions up to 20km high. It has pyroclastic flow and ashfall tephra

Answer 12

Vulcanian

Question 13

What type of volcano (according to shape) is taal?

Answer 13

cinder cone

Question 14

A smaller cone formed by eruptions from side vents.

Answer 14

Parasitic cone

Question 15

Magma that has reached the Earth’s surface through a volcanic vent.

Answer 15

Lava

Question 16

The sides of a volcano, where secondary eruptions may occur.

Answer 16

Flank

Question 17

Type of volcanic eruption that has fountains/outbursts of lava

Answer 17

Strombolian

Question 18

A vertical or steeply inclined sheet of solidified magma cutting through layers of rock.

Answer 18

Dike

Question 19

A passage within a volcano through which magma travels from the magma chamber to the surface.

Answer 19

Conduit

Question 20

Fine volcanic particles smaller than 2 mm in diameter.

Answer 20

Ash

Question 21

Type of volcanic eruption driven by steam from external water x magma reaction

Answer 21

Phreatomagmatic

Question 22

a rupture/vent/fissure on the crust of the earth that releases hot lava, gases, and ash escaping from the magma chamber.

Answer 22

volcano

Question 23

A flat piece of rock formed when magma hardens in a crack in the volcano

Answer 23

Sill

Question 24

type of volcano expected to erupt (filling up)

Answer 24

dormant

Question 25

What type of volcano (according to shape) is mauna loa

Answer 25

Shield

Question 26

A reservoir of molten rock beneath the Earth's surface.

Answer 26

Magma reservoir/chamber

Question 27

Formed by less vicious basaltic lava (fluid); dome shaped, wide base

Answer 27

Shield

Question 28

Type of volcanic eruption driven by steam from ground water vaporizing due to rapid heating.

Answer 28

Phreatic

Question 29

type of volcano that hasn't erupted in 10k years

Answer 29

inactive/extinct

Question 30

The bottom foundation of the volcano structure.

Answer 30

Base

Question 31

The highest point of a volcano.

Answer 31

Summit

Question 32

The narrowest part of the volcanic conduit near the surface, where magma and gases are ejected during an eruption.

Answer 32

Throat