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Can you volcano?

Total questions: 13

Worksheet time: 6mins

Name
Class
Date
1.

Volcanoes can be found in all these boundaries except transform boundaries and

a)

O-O Divergence

b)

O-C Convergence

c)

C-C Convergence

d)

C-C Divergence

2.

The bowl shaped opening at the end of the pipe of a volcano is known as

a)

Crater

b)

Vent

c)

Magma chamber

d)

Cone

3.

1. Magma rises to the surface through the vent, and onto the surface as lava.

2. New eruptions of lava covers the ash layer and builds up the volcano.

3. Magma rises from the mantle's magma chamber to the crust through fractures in the crust.

4. Lava builds up around the vent, solidifying to form a small volcanic cone. The bowl-shaped opening is called a crater.

Rearrange the process to explain formation of volcano

a)

1,2,3,4

b)

3,1,4,2

c)

2,4,1,3

d)

4,2,1,3

4.

Most volcanoes around the world can be found at

a)

Pacific Ring of Fire

b)

Mid-Atlantic Ridge

c)

Himalayas

d)

Iceland

5.

At divergent boundaries, (a)   volcanoes are formed

6.

At convergent boundaries, (a)   volcanoes are formed

7.

Lava's resistance to flow is known as

(a)  

8.

Strato volcanoes have all these characteristics except

a)

Narrow base

b)

Low viscosity lava

c)

Steep Gradient

d)

Explosive eruptions

9.

Shield volcanoes have all these characteristics except

a)

Broad base

b)

Low viscosity lava

c)

Gentle Gradient

d)

Very tall volcanoes

10.

At strato volcanoes, lava is viscous because it contains more

a)

Plate material

b)

Silica

c)

Molten rock

d)

Ash

11.

At strato volcanoes, eruptions are explosive because the magma traps a lot of

a)

Ash

b)

Lava

c)

Gas

d)

Rocks

12.

Which volcano has lava is of a higher temperature?

a)

Shield

b)

Strato

13.

Pyroclasts refer to

a)

Lava

b)

Hot rock fragments and superheated gases

c)

Lava and water mixture

d)

Ash and rock fragments