Vocabulary Words
an opening in Earth that erupts gases, ash, and lava.
What is a volcano?
at this location, plates move together and volcanoes often occur
What is a convergent plate boundary?
bits of rocks or solidified lava that drop from the air
What is tephra?
Hawaiian Islands
What is shield?
steep sided, loosely packed volcano
What is a cindercone?
an opening in Earth's surface, which magma flows out when it reaches surface levels
What is a vent?
hot rock is forced toward the crust here because the boundary between the mantle and core is unusually hot
What is a hotspot?
A broad volcano, with gentle sloping sides
What is a shield volcano?
Kileaua
What is a shield?
Magma low in silica causes this type of eruption
What is quiet?
When a cycle of lava and tephra is repeated over and over in alternating layers
What is a composite volcano?
the world's most active volcano
What is the Kilauea?
Soufriere Hill
What is a composite volcano?
magma rich in silica has this texture
What is thick and stiff?
bits of rock or solidified lava
tephra
these sit atop a hot spot in the Pacific
What are the Hawaiian Islands?
Mount Rainier
What is composite volcano?
example of a volcano that forms at a divergent plate boundary
What is Surtsey?
steep walled depression around a vent
What is a crater?
Magma is forced upward due to this
What is it is less dense than the rock around it?
boundary type that formed the Andes
What is convergent boundary?
volcanic ash and debris running down the side of a volcano is called this
What is a pyroclastic flow?