Volcanoes Plates Earthquakes Flashcards

1
Q

The major movement of the plates and description of plate boundaries of the Earth are

A

Convergent Divergent Transform

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2
Q

Tectonic plates float on the

A

Asthenosphere

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3
Q

Convergent movement of two plates often results in one plate pushing under another T F

A

True

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4
Q

There are areas of liquid rock under the middle of plates, resulting in volcanic activity and chains of islands T F

A

True

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5
Q

Scientists think continental plates move because of circulating liquid rock below the plates T F

A

True

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6
Q

What are the results of plate tectonics

A

Volcanic Activity Earthquakes Energy Sources for Man

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7
Q

The slabs of rock known as continents make up the complete lithosphere T F

A

False

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8
Q

The original land mass of the Earth before continents was called

A

Pangaea

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9
Q

The concept that Earth’s upper layer or lithosphere is divided into large quite rigid segments which float over the more dense upper mantle is termed

A

Plate Tectonics

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10
Q

Plate boundaries where two plates are moving apart from one another and new plate material is being formed as molten rock rises to fill the gap between them are called

A

Ridges

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11
Q

The plates of the Earth move because of

A

Convection currents in the mantle

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12
Q

The strongest shock waves of an earthquake occur close to what is called the epicenter a point on the surface of the crust directly above what is called the

A

Focus

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13
Q

An earthquakes magnitude is measured with a tool that records the size of seismic waves called a

A

Seismograph

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14
Q

Most earthquakes occur

A

Along plate boundaries

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15
Q

Earthquakes and volcanoes share which of the following in common

A

They both occur along plate boundaries They both can involve explosive movement They are both related to plate tectonic activity

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16
Q

Volcanoes can cause

A

Global Cooling Earthquakes and the Release of Poisonous Gases

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17
Q

Dust and ash from a volcanic eruption can be carried

A

10s 100s or even 1000s of miles

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18
Q

Scientists can predict volcanic eruptions

A

False

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19
Q

The tallest volcanoes are composite volcanoes

20
Q

Hot lava of volcanoes can mix with water to create a

A

Steam Explosion

21
Q

Many volcanoes are less than a half-mile tall T F

22
Q

A volcanic explosion can create winds faster than those found in a hurricane can T F

23
Q

Lava flows can never be stopped T F

24
Q

The epicenter of the earthquake is directly below the focus T F

25
Waves move out through the ground from the source of an earthquake T F
True
26
Some of the results of an earthquake can be
Property Damage Landslide or a Tsunami
27
The machine that measures the strength of an earthquake is called
Seismograph
28
Earthquake foci are how deep
More than 200 Miles Deep 50 200 Miles Deep or can be 0 50 Miles Deep
29
Many earthquakes happen along the borders of
Tectonic Plates
30
Faults are only found near the edges of tectonic plates T F
False
31
Waves of large earthquakes can move through large portions of the Earth T F
True
32
Earthquakes can happen when the strain on weak rocks forces them to break and fracture T F
True
33
Earthquakes can happen when there is a large amount of
Volcanic Activity
34
All planets have the same structure inside T F
False
35
The surface of the Earth is constantly moving T F
True
36
The thickness of the atmosphere is equal to the radius of the Earth T F
False
37
Which of these terms is used to label the layers below the Earth's surface
Mantle and Core
38
The Earth would be the same planet if we had a solid iron core instead of liquid T F
False
39
Which of these choices is NOT a type of rock Igneous Sedimentary Ingenious Metamorphic
Igneous
40
What happens when two tectonic plates push against each other
Earthquakes
41
What is a good way to find faults beneath the surface
Map Earthquakes
42
The epicenter of an earthquake is the source of the quake below the surface T F
False
43
Name 3 types of Lava
Silicic Mafic Intermediate
44
This volcano has runny lava and has non-explosive eruptions, has a low profile yet is very large
Shield volcano
45
This volcano is formed from pyro clastic material, and has violent eruptions with blocky lava. Has very steep sides and cause ash to travel very far
Strato-volcano or composite volcano
46
This volcano forms along vents. Know for being very short and very round and semi violent eruptions. But also erupt for a short time
Cinder cone