WorksheetsVolcano Review - 1st
Total questions: 26
Worksheet time: 13mins
Name
Class
Date
1.
What is the difference between lava and magma?
a)
lava is inside the earth, magma is outside
b)
lava is solid, magma is liquid
c)
lava is outside the earth, magma is inside
d)
lava is liquid, magma is solid
2.
Which is NOT a major volcano zone?
a)
subduction zone
b)
hot spot
c)
divergent boundaries
d)
C-C convergent boundaries
3.
Which is NOT true about hot spots?
a)
They do not move
b)
They do move
c)
They create volcanic islands
d)
Plates move over them
4.
According to the diagram, which island is the OLDEST?
a)
Oahu
b)
Maui
c)
Kauai
d)
Hawaii
5.
According to the diagram, which island would be the MOST ACTIVE?
a)
Hawaii
b)
Kauai
c)
Oahu
d)
Maui
6.
What is viscosity?
a)
Ability to flow
b)
How melted something is
c)
How solid something is
d)
Resistance to flow
7.
Which is NOT true about felsic lava?
a)
It has less viscosity than mafic
b)
It is cooler in temperature
c)
It is more explosive than mafic
d)
It is common in continental crust
8.
Why is felsic lava more explosive than mafic lava?
a)
It is a higher temperature
b)
It has more iron and magnesium
c)
It is thinner and more runny
d)
Gasses are trapped
9.
Rock fragments that are ejected during explosive eruptions are called ____.
a)
pyromaniac
b)
pyroclastics
c)
pyrocynical
d)
pyromenial
10.
The super-heated, dense cloud shown here is called _____.
a)
vortex
b)
dust cloud
c)
pyroclastic flow
d)
thermal cloud
11.
When lava cools into jagged chunks, it is called _____.
a)
aa
b)
ribbon lava
c)
pillow lava
d)
pahoehoe
12.
When lava cools into ribbons, it is called ____.
a)
aa
b)
ribbon lava
c)
pillow lava
d)
pahoehoe
13.
Put the pyroclastic materials in order from smallest to largest.
a)
dust, ash, lapilli, bombs, blocks
b)
dust, lapilli, ash, bombs blocks
c)
blocks, bombs, lapilli, ash, dust
d)
ash, dust, lapilli, bombs, blocks
14.
This pyroclastic material is about the size of rice grains.
a)
volcanic ash
b)
volcanic dust
c)
lapilli
d)
volcanic blocks
15.
This pyroclastic material is similar in size to baking flour.
a)
volcanic ash
b)
lapilli
c)
volcanic dust
d)
volcanic flour
16.
This type of pyroclastic material is similar in size to pebbles.
a)
volcanic dust
b)
lapilli
c)
volcanic dust
d)
pahoehoe
17.
This is SOLID rock blasted from a volcano.
a)
lapilli
b)
volcanic block
c)
pahoehoe
d)
volcanic bomb
18.
This is when hot lava is thrown from a volcano and hardens as it spins.
a)
volcanic bombs
b)
volcanic blocks
c)
lapilli
d)
pahoehoe
19.
Which is NOT true about shield volcanoes?
a)
They can have explosive eruptions
b)
They are made of mafic lava that flows out and cools
c)
They are only quiet eruptions
d)
They have gentle, sloping sides
20.
Which is NOT true of cinder cone volcanoes?
a)
They are made of felsic lava
b)
They are made of solid, pyroclastic material
c)
They have only explosive eruptions
d)
They are made of mafic lava
21.
Which is NOT true of composite (strato) volcanoes?
a)
They have alternating mafic and felsic layers
b)
Mount St. Helens is an example
c)
They only produce mafic lava
d)
They alternate quiet and explosive eruptions
22.
What is the opening at the top of the volcano called?
a)
vent
b)
caldera
c)
crater
d)
pit
23.
What is the "tube" that allows magma to travel to the surface called?
a)
crater
b)
vent
c)
caldera
d)
pit
24.
When a volcanic cone collapses and fills with water, it is called a ______.
a)
crater
b)
caldera
c)
vent
d)
pit
25.
Which is NOT a way that scientists can predict a volcanic eruption?
a)
increases seismic activity
b)
sets off nearby alarms
c)
change in gas composition
d)
bulge of the rocks
26.
Which is NOT a way that scientists can predict a volcanic eruption?
a)
increases seismic activity
b)
sets off nearby alarms
c)
change in gas emission
d)
bulge of the rocks
100 %
