WorksheetsVolcanoes
Total questions: 9
Worksheet time: 5mins
Name
Class
Date
1.
_____ is magma that has reached and cooled on Earth's surface.
a)
lava
b)
magma
c)
plume
2.
A _____ is a place where magma collects underground.
a)
focus
b)
caldera
c)
magma chamber
3.
A bowl-shaped volcanic feature is a _____.
a)
crater
b)
caldera
c)
magma chamber
4.
A(n) _____ is a volcano that is erupting or that has erupted recently.
a)
active
b)
dormant
c)
extinct
5.
The _____ is a region where about half of the active surface volcanoes on Earth occur.
a)
Antarctica
b)
Ring of Fire
c)
volcanic island chain
6.
_____ makes magma thick and sticky.
a)
a
b)
b
7.
A volcanic island forms over a(n) _____.
a)
caldera
b)
epicenter
c)
hot spot
8.
Low gas, high silica magma forms _____ rocks.
a)
metamorphic
b)
basalt
c)
silica
9.
High gas, low silica magma forms _____ rocks.
a)
sedimentary
b)
basalt
c)
silica
100 %
