Science W1 L1 - Volcanoes Flashcards

1
Q

An OPENING IN THE EARTH’S CRUST from which lava, ash, and hot gases flow or are ejected during an eruption. A usually cone shaped mountain formed by the materials issuing from such an opening.

A

Volcano

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2
Q

It is a FUNNEL-SHAPED DEPRESSION AT THE TOP OF A VOLCANO, formed as a result of explosive eruption. It is the MOUTH or the OPENING of the volcano.

A

CRATER

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3
Q

It is a VOLCANIC CRATER THAT IS FORMED when a part of the wall of the crater collapses following an explosive eruption. A caldera collapse is usually triggered by the emptying of the margins chamber beneath the volcano as the result of a large volcanic eruption

A

CALDERA

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4
Q

Is a HOT FLUID or semi-fluid material below or WITHIN THE EARTH’S CRUST that is usually made from molten rocks inside the earth.

A

MAGMA

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5
Q

The rock or magma EXPELLED from a volcano during an eruption.

A

LAVA

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6
Q

It is the highest point or apex of a volcano.

A

Summit

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7
Q

A region of high volcanic activity not located at any plate boundary.

A

Hot Spot

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8
Q

are currently active if it is erupting lava, releasing gas or generating seismic activity. An active volcano is labeled dormant if it has not erupted for a long time but could erupt again in the future

A

ACTIVE VOLCANOES

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9
Q

are volcanoes that are not currently active, but may be either dormant or extinct or of otherwise uncertain inactive volcanic status.

A

INACTIVE VOLCANOES

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