Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Earth and Space > Volcanoes and Geologic TIme Scale Test Review > Flashcards

Volcanoes and Geologic TIme Scale Test Review Flashcards

1
Q

Volcano

A

Vent through which lava, rock fragments, hot vapors , and gas are being or have erupted

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

_____ volcanoes are formed from fast flowing, lava which flows easily over the surface, forming larger volcanoes with gentle sides

A

Shield

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

As magma rises towards the surface it collects in a ‘room’ called a _____ _____

A

Magma Chamber

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

How do volcanoes on the Hawaiian Islands form?

A

Hotspots

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

A broad volcanoes with gently sloping sides is a _____volcano

A

Shield

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

What is molten rock that has formed deep within the Earth?

A

Magma

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

A small volcano with steep sides and pyroclastic ash is called_____volcano.

A

Cinder

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

One major belt of volcanoes that surrounds the Pacific Ocean is called the _____ __ _____

A

Ring Of Fire

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

A steep-sided volcano formed from alternating layers of lava and ash is called _____ volcano.

A

Composite

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

What type of volcano is Mt. St. Helens?

A

Composite

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

Hot fast moving lava is called _____ lava flow.

A

A’a’

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

What island do we know has a volcano erupting today? What type of volcano is it?

A

Hawaii, Shield

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

Volcanoes that are NOT found at plate boundaries occur in the middle of plates in areas called_____.

A

Hotspots

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

A type of eruption where magma flows easily, thin runny lava oozes quierly from the vent.

A

Quiet Eruption

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

When an explosive eruption forms a mixture of hot rock, ash, and gas, this material is called a…?

A

Pyroclast

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

Which type of volcano is Mount Fuji in Japan?

A

Composite

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

Volcanoes that have recently erupted are known as:

A

Active

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

What are scientists that study volcanoes called?

A

Volcanologist

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

What type of volcano is Kilauea, which is located in Hawaii?

A

Shield

20
Q

Cool, slow moving lava, which a rough and jagged surface is called_____

A

Pahoehoe

21
Q

What is opening that extends from the magma chamber to the top of the volcano called?

A

Vent

22
Q

What is / are sign(s) that a volcano may erupt soon? (4)

A

Earthquakes, Swelling of Volcano, Smoke, and Displaced Ground

23
Q

What type of volcano is the most explosive?

A

Composite

24
Q

A volcano that has erupted in the last 2000 years, but not recently is known as _____

A

Dormant

25
Q

A combination of explosive (pyroclasts) and quiet (lava) eruptions will create a_____volcano.

A

Composite

26
Q

What factor(s) determine(s) whether an eruption will be explosive?

A

Viscosity of liquid, gas pressure buildup

27
Q

The loudest sound ever recorded was the eruption of_____.

A

Krakatoa

28
Q

What is a huge hole left behind when a volcano has an enormous eruption and empties the magma chamber and the main vent?

A

Caldera

29
Q

What are solid rock fragments that are ejected during a volcanic eruption?

A

Pyroclast

30
Q

What is a fissure?

A

Crack/opening in earth’s crust

31
Q

Name 4 substances that can come out of volcanoes.

A

lava, rock, gas, water vapor

32
Q

What is Magma when it reaches the surface of Earth?

A

Lava

33
Q

Which type of volcano has a short life span?

A

Cinder

34
Q

A bowl shaped area that may form at the top of a volcano around the central vent

A

Crater

35
Q

Large projectiles thrown through the air during an eruption are called_____

A

Pyroclastic Bombs

36
Q

Volcanoes that have not erupted for at least 10,000 years and are not expected to erupt again are described as…

A

Extinct

37
Q

Geologic Time Scale-

A

Order of Earth’s History (conditions, life, extinctions)

38
Q

When did birds first appear?

A

Mesozoic-Jurassic

39
Q

The biggest mass extinction event in history, which allowed reptiles and mammals to flourish, occurred between what 2 periods

A

Permian/Triassic

40
Q

What is the name of the very harsh time when no life existed on Earth?

A

Hadean Eon

41
Q

At this time, what us the believed age of the Earth?

A

4.5 Billion Years

42
Q

What type of event usually marks the end if an Era?

A

Extinction

43
Q

What is the name of a scientist who studies fossils?

A

Paleontologist

44
Q

What does the word “extinction” mean?

A

Termination of a species/organism

45
Q

What period was the “age of fish”?

A

Devonian

46
Q

What is a fossil?

A

Preserved Remains

47
Q

What us the benefit of radiometric dating? What do scientists use it to determine?

A

Age of a fossil using half lives/ Absolute dating of a specimen

Earth and Space (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions