Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

REVIEWER > SCIENCE (VOLCANO) > Flashcards

SCIENCE (VOLCANO) Flashcards

Review (65 cards)

Start Studying
1
Q

Large landmass on the surface of Earth’s crust

A

Mountain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Opening of Earth’s crust that erupts and emits smoke and magma

A

Volcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Product of subduction zones

A

Volcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

An Earth’s body that has neither magma chamber nor crater

A

Mountain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

It is a horseshoe-shaped of 75% belt that surrounds the Pacific Ocean with 75% of world’s active volcanoes

A

Pacific Ring of Fire

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the types of volcano based on its structure and cone shape?

A

1)Shield volcano
2)Cinder cone volcano
3)Composite/stratovolcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Type of volcano that erupts in a non-explosive, effusive manner
* basaltic magma, low silica content, small gas content

A

Shield volcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Volcano with explosive eruptions of ash,cinder and dust
* common type of volcano

A

Cinder cone volcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Volcanoes that erupts explosively with a pyroclastic flow
* High silica content, tall and symmetrical

A

Composite or stratovolcano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Magma will be considered ______ if it is blasted into the air and hardens.

A

pyroclastic material

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

types of pyroclastic materials

A

1)Volcanic bombs
2)Volcanic ash
3)Volcanic blocks
4)Lapili

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Types of volcanic eruptions

A

1)Phreatic
2)Phreatomagmatic
3)Strombolian
4)Vulcanian
5)Plinian

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Phreatic eruptions are ______ with only ephemeral ash columns

A

short-lived

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Another name for phreatic eruption

A

Hydrothermal eruption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Unsafe pyroclastic flow currents is called ______.

A

Base surges

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Difference between phreatic and phreatomagmatic eruption

A

Phreatic - contact of water and hot rocks
Phreatomagmatic - contact of water and magma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Very violent eruption with voluminous columns of very fine ash, high speed, and produce unsafe pyroclastic currents

A

Phreatomagmatic eruption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

This eruption results to a cinder cone volcano.

A

Strombolian eruption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Characterized by lava fountains and flow

A

Strombolian eruption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Builds a cauliflower-shaped head eruption

A

Vulcanian eruption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Taal eruption is what kind?

A

Phreatic or phreatomagmatic eruption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Plinian eruptions is the _____ eruption type, with a towering ash cloud reaching up to _____ in height and produces extremely dangerous _______.

A

most powerful; 50,000 feet; pyroclastic flows

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What kind of eruption that happened in 1991 Pinatubo eruption?

A

Plinian eruption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Factors affecting volcanic eruption’s style

A

1) Composition of magma/silica content
2) Magma temperature
3) Amount of dissolved gases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
The higher the temperature of magma, the _____ the viscosity.
lower
26
The _____silica content of magma, the higher its viscosity.
higher
27
The higher the amount of gas of magma, the _____ its viscosity.
higher
28
People believed that Earth is the center of the universe.
Geocentrism
29
Is Earth flat?
Weh? Mama mo!
30
It is the study of landforms and landform evolutions.
Geomorphology
31
What are the primary geological forces that alters the Earth's surface?
1) Diastrophism 2) Erosion 3) Weathering
32
Horizontal or vertical movement of the crust; produces mountains.
Diastrophism
33
Types of stress
1) Tension (ex. crust thinning, normal fault) 2) Compression(ex.folding, reverse fault) 3) Shear (ex. horizontal bending, strike-slip fault
34
PHYSICAL wearing down of landmass by geomorphic agent such as running water.
Erosion
35
Process of breaking down or dissolving of rocks and minerals
Weathering
36
Phenomenon relating to volcanoes, magma, geysers, and hot springs.
Volcanism
37
The word 'volcano' is derived from ______?
Vulcano Island; Vulcan of Roman God of fire
38
A volcano is a ______ or a ______ that connects the magma from within the Earth's crust to the surface.
vent; chimney
39
It indicates that the volcano is not expected to erupt again. (more than 10,000 years old)
Extinct volcano
40
A volcano to be awaken in the future and erupt again. (1001-10,000 years old)
Dormant volcano
41
A volcano that is erupting in recent history (1-1000 years old)
Active volcano
42
The most striking part of volcano
Cone
43
opening of the volcano where lava flows or eruption takes place
vent
44
The main part of the volcano that supplies magma from the underlying sources to the top of the volcano.
vent
45
Large underground storage of liquid magma beneath the Earth's crust.
Magma chamber
46
Part of the volcano that is a bowl shaped indent where the vent is located.
Crater
47
A volcanic depression that is larger than an original crater.
Caldera
48
Difference between magma and lava
Magma - BENEATH the Earth's surface Lava - OUTSIDE or reached the Earth's surface
49
What temperature can the magma (lava upon ejection) reach until it cools and hardens?
up to 700°C
50
Channel that conveys the magma up to the surface.
Conduit
51
The side of the volcano
Flank
52
The highest point of the volcano or mountain
Summit
53
Chunks of lava rocks that can measure up to 64 mm in diameter.
Volcanic bombs
54
Another term for mudflows
Lahar
55
Fast moving currents of volcanic debris that can travel up to 700km/hr and as hot as 1000°C.
Pyroclastic flow
56
Three(3) things to consider in volcanic monitoring
1) Seismicity 2) Deformation 3) Gas output
57
_________ is rich in nutrients and very fertile in growing crops.
Volcanic soil
58
Type of natural energy generated from volcanoes
Geothermal energy
59
A geothermal system that sends water and steam into the air
Geyser or steam vent
60
A geothermal system that emits gases such as carbon dioxide, sulfur oxide, and hydrogen sulfide
Fumaroles or solfataras
61
underground naturally discharge of hot water from the earth
hot spring
62
Philippines, in terms of generation of geothermal energy, ranks in the world at what spot?
2nd (second)
63
Where is the first Philippine geothermal plant located that started operating in 1997?
Leyte
64
Advantages of geothermal energy
1)Eco friendly 2)High reliability 3)Flexibility 4)Minimum landscapes 5)Cost effective 6)Helps developing countries grow
65
Disadvantages of geothermal energy
1)Poses Environmental problems 2) Releases hydrogen sulfide 3) Disposes toxic geothermal fluids

REVIEWER (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions