WorksheetsVolcanoes
Total questions: 20
Worksheet time: 11mins
The main hazard from a quiet volcanic eruption is
volcanic gases
lava flows
geysers
pyroclastic flows
The mixture of hot gases, ash, cinders, and bombs that flow down the sides of a volcano when it erupts explosively is
a lava flow
a pyroclastic flow
a volcano landslide
a volcanic eruption
Select all of the terms used to describe the stages of volcanic activity.
active
dormant
cinder cone
shield
extinct
The Hawaiian islands are examples of
hot spot volcanoes
cinder-cone volcanoes
deep ocean trench volcanoes
mid-ocean ridge volcanoes
Select all answers that are part of a volcanoes structure.
magma chamber
pipe
vent
crater
The area around the Pacific Ocean where over 75% of the world's volcanoes are found is called the
Danger Zone
Volcanic Circle
Ring of Fire
Ring of Sauron
The smallest lava fragments produced by an explosive eruption are called volcanic
pebbles
bombs
ash
baby rocks
A volcano erupts quietly if its magma is which of the following?
cool
solid
low in silica
high in silica
Volcanoes form along the mid-ocean ridges, where two plates move together?
True
False, Apart
False, Slide past each other (transform boundary)
Not all volcanoes form along plate boundaries.
True
False
Volcanic belts form along the boundaries of Earth's ________________________
oceans
tectonic plates
rivers
countries
Volcanoes with steep sloping sides that are thousands of feet tall are
composite volcanoes
shield volcanoes
cinder-cone volcanoes
calderas
Volcanoes that are composed of layers of bombs, cinders, and ash but no lava are most likely
cinder-cone volcanoes
composite volcanoes
shield volcanoes
hot spot volcanoes
Volcanoes that have runny lava and are thousands of feet high with gently sloping sides are
shield volcanoes
composite volcanoes
cinder-cone volcanoes
extinct volcanoes
