volcano

Question 1

help Earth release heat
so that it can cool off.

Answer 1

volcanoes

Question 2

Volcanoes are the __________ into
the interior of Earth

Answer 2

windows

Question 3

volcano robots

Answer 3

-robovolc
-dante II
-spiderbot

Question 4

is a vent
or ‘chimney’ that
connects molten rock
(magma) from within
the Earth’s crust to
the Earth’s surface.

Answer 4

volcano

Question 5

‘volcano’ comes
from the island ______
which is a volcanic island in

Italy.

Answer 5

vulcano

Question 6

The island
actually gets
its name from
the Roman
god of fire

Answer 6

vulcan

Question 7

This is the outer layer of the
earth. It varies in thickness
from 0 – 60km thick. It is not
even and is made up of pieces
which overlap to cover the
entire planet. These pieces are
called ‘tectonic plates’.

Answer 7

crust

Question 8

is approximately
2897km thick and is made of
a solid, rocky substance
called molten rock or
magma. This is what
escapes when a volcano
erupts.

Answer 8

mantle

Question 9

a liquid layer
made out of molten iron and nickel.
This liquid metal creates the earth’s
magnetic field.

Answer 9

outer layer

Question 10

This is a solid layer and is made of
iron and nickel. It is the hottest
part of the earth and can reach
temperatures of up to 5500oC!

Answer 10

inner core

Question 11

how many volcanoes

Answer 11

452 volcanoes

Question 12

stages of volcano

Answer 12

active
dormants
extinct

Question 12

is an
area of the Pacific
Ocean that is shaped
like a horseshoe.

Answer 12

ring of fire

Question 13

has erupted recently, and there is the possibility
that it may erupt again.

Answer 13

active

Question 14

is one which has erupted
thousands of years ago, but it will
probably never erupt again.

Answer 14

extinct

Question 14

one that has not erupted for a long time, however, it may
still erupt in the future.

Answer 14

dormant

Question 15

the resistance created when

one surface rubs
against another.

Answer 15

friction

Question 16

An opening in the
surface of the Earth
through which volcanic
materials, such as
magma, can escape.

Answer 16

vents

Question 17

A cloud of ash. It is
formed by volcanic
explosions

Answer 17

ash cloud

Question 18

The mouth of a volcano. It
surrounds the vent.

Answer 18

crater

Question 19

An underground
passage which magma
travels through.

Answer 19

conduit

Question 20

A large underground pool
of liquid rock found
beneath the surface of the

Earth.

Answer 20

magma reservoir

Question 21

The entrance of a
volcano. It ejects lava
and volcanic ash.

Answer 21

throat

Question 22

Sources of Geothermal
Energy

Answer 22

volcanoes

Question 23

is an important material in a volcanic activity.

Answer 23

magma

Question 24

Types of Magma

Answer 24

1. Basaltic 2. Andesitic 3. Granitic

Question 25

Types of Eruption

Answer 25

●Phreatic ●Vulcanian ●Strombolian ●Pelean ●Phreatomagmatic ●Plinian

Question 26

steam produced when groundwater is heated due to underlying heat source

Answer 26

phreatic

Question 27

result from the release of large quantities of accumulated magmatic gas (cauliflower clouds)

Answer 27

vulcanian

Question 28

weak to violent eruptions characterized by lava fountains and outburst if molten lava (egg shaped)

Answer 28

strombolian

Question 29

when gas rich pasty lava accumulate to form a dome (avalanche)

Answer 29

pelean

Question 30

ejection of magmatic gases(ring shaped horizontal)

Answer 30

phreatomagmatic

Question 31

characterized by voluminous ejections of pumice and by ash flows

Answer 31

plinian

Question 32

types of volcanoes

Answer 32

cinder volcano composite volcano shield volcano

Question 33

when viscous lava of andesitic flows out (mayon volcano)

Answer 33

composite

Question 34

ejected lava fragments (taal volcano)

Answer 34

cinder cone

Question 35

Hazards Posed by Active Volcanoes

Answer 35

●Blasts ● Dome growth ●Gases ● Lahar flow ●Pyroclastic flow ●Pyroclastic surges ● Tephra falls (fragments of rock) ● Tsunami

Question 36

volcanic material and hazard

Answer 36

pyroclastic flow lava flow ash fall/ tephra fall lahar volcanic gases

Question 37

fast movements of turbulents mass of fragmental volcanic materials

Answer 37

pyroclastic flow

Question 38

stream like flow incandescent

Answer 38

lava flow

Question 39

shower to fine to coarse gained volcanic materials

Answer 39

ash fall/tephra fall

Question 40

rapid flowing thick mistures of volcanic materials

Answer 40

lahar

Question 41

high temperature pf mixture of water vapor

Answer 41

volcanic gases