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Structures of a volcano!

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

______is the highest point or the apex of the volcano. At the summit,

you have an opening called vent.

a)

summit

b)

main vent

c)

Lava

d)

crater

2.

   is a of mixtures of rock, minerals, glass particles and

gases expelled or pushed out of the volcano during volcanic eruption.

a)

lava

b)

conduit

c)

side vent

d)

ash and gas cloud

3.

     is a molten rock which is given off onto the surface of the Earth

when a volcano erupts.

a)

magma

b)

magma chamber

c)

lava

d)

slopes

4.

  is the mouth of the volcano which is a funnel-shaped or bowlshaped

hollow at the top of the vent from where magma, ash and gas

comes out.

a)

vent

b)

crater

c)

conduit

d)

magma

5.

is a smaller outlet through which magma escapes.

a)

main vent

b)

side vent

c)

magma chamber

d)

crater

6.

     is an underground central tube-like or pipe-like structure of a

volcano that connects the magma chamber to the crater through which

the magma travels.

a)

magma

b)

conduit

c)

magma chamber

d)

main vent

7.

    is the main opening or outlet on the surface of a volcano that

emits lava, gases, ash or other volcanic materials.

a)

main event

b)

main vent

c)

slope

d)

summit

8.

      is a region beneath the vent of a volcano where molten

rock or magma is deposited or stored before eruption.

a)

main vent

b)

lava

c)

magma chamber

d)

magma

9.

is the lower outer part of the volcano.

a)

summit

b)

slope

c)

magma chamber

d)

base

10.

·         are the sides or flanks of a volcano that radiate from the main or

central vent.

a)

slope

b)

magma

c)

lava

d)

side vent