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Summative Test > Science Summative Test > Flashcards

Science Summative Test Flashcards

1
Q

not erupted recently but is expected to do so again

A

Dormant Volcanoes

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2
Q

do not think it will ever erupt again

A

Extinct

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3
Q

5 active volcanoes of Philippines

A

Taa
Mayon
Pinatubo
Kanlaun
Bulusan

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4
Q

PHIVOLCS

A

Philippines Institute of Volcanology and Seismology

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5
Q

large underground pool of molten rock found beneath surface of the earth

A

Magma Chamber

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6
Q

hard, solid rock beneath surface materials of the soil and gravel

A

Bedrock

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7
Q

underground passage through which magma travels to the surface of volcano

A

Conduit (Pipe)

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8
Q

bottom of volcano

A

Base

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9
Q

Planar sheet if magna that is parallel to the surrounding rock

A

Sill

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10
Q

Formed by volcanoc explosions

A

Ash Cloud

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11
Q

mouth of volcano which surrounds the vent

A

Crater

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12
Q

opening in the surface to the earth through with volcanic materials can escape

A

Vent

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13
Q

liquid rock that is formed when gas bubbles is molten rocks called magma force out the ground around them

A

Lava

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14
Q

found inside the volcano and consist of molten rock. it can be runny or viscous depending on how many gas it contains

A

magma

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15
Q

found inside the volcano and consist of molten rock. it can be runny or viscous depending on how many gas it contains

A

magma

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16
Q

uppermost portion of the primary vent the entrance to the volcano and volcanic ash is ejected

A

Throat

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17
Q

Magma mass force on to the earth surface

A

Lava Flow

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18
Q

measure of rock mineral and glass particles expelled from a volcano

A

Volcanic Ash

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19
Q

Secondary vent cause smaller volcano

A

Parasitic cone

20
Q

Side of the volcano

A

Flank

21
Q

additional path for magma to follow tube that extends from central pipe under the surface of the volcano

A

Branch pipe

22
Q

Type of Volcano
-wide
-many layers
-oozes from the volcano.
- almost flat
-formed from wide thin layers of lava?

A

Shield Volcanoes

23
Q

Type of Volcano
- scoria cone
- simplest type
- composed mainly basalt
- single vent
- short life span
-built fron ash
-smallest
- wide opening

A

Cinder

24
Q

Type of Volcano
- stratovolcano
-conduit system is central
- Lava flow is a big distance
- Slopes are symmetrical
-High
-viscous or sticky lava that does not flow
easily

A

Composite

25
Q

Type of Volcano
- small with steep sides
- oozes viscous lava

A

Lava domes

26
Q

Tupe of Volcano
-largest eruption
- magnitude 8

A

Super Volcano

27
Q

Type of Volcano
-erupts in the underwater
- ocean ridge and shallow water

A

Submarine Volcanoes

28
Q

Type of Volcano
- glaciovolcano
- beneath the surface of glaciers often cause great floods of water

A

Subglacial Volcano

29
Q

High Temperature

A

Low Viscosity (fast)

30
Q

High silica content

A

High Viscous (Slow)

31
Q

High Gas content and Bubbles

A

Low Viscosity (Fast)

32
Q

SiO2

A

silica

33
Q

molecule form of silicon oxygen is the basic building block of volcanic rocks

A

Silica

34
Q

3 Factors How Volcano Erupt

A

1.Lithostatic Pressure
2. Rock Strength
3. Magma Static Pressure

35
Q

Why Volcano Erupt?

A

some of magma pushes through heats and features to the earth’s surface

36
Q

indicators that volcano will erupt

A
  1. Ground deformation
  2. Increase in the intensity and frequency of earthquake
  3. sudden change of weather pattern
  4. Heat emission
37
Q

Types of eruption
-weakest part
-calm
- non explosive
- low level eruption
- effusive

A

Hawaiian

38
Q

Type of Eruption
mild blast
incandescent

A

Strombolian

39
Q

Types of eruption
- explosive filled with ash
- volcanic bomb

A

Vulcanian

40
Q

Types of eruption
-gas dust and pyroclastic flow
-pumice js appear

A

Pelean

41
Q

Types of eruption
-most violent
-explosive
- strong

A

Plinian

42
Q

Type of Eruption
- mixed with magma and water
- slowly
- Its eruption has resulted to sideway emission of pyroclastic

A

Phreaticmagmatic eruption

43
Q

Type of Eruption
- heating of water caused by magma or hot rocks
- no new magma reaches the surface.

A

Phreatic or Hydrothermal

44
Q

What are the characteristics of magma that create explosive eruptions?

A

High Gas Content and High Viscosity

45
Q

What would magma with the highest viscosity contain?

A

high silica content and low temperature

46
Q

Which gas from erupting volcano causes Global Warming?
A. Carbon dioxide
B. Sulfur dioxide
C. Methane gas
D. Hydrogen sulfide

A

A

47
Q

Which is NOT a common gas in magma?
A. methane gas
B. carbon dioxide
C. sulfur dioxide
D. water vapor

A

A

Summative Test (2 decks)

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