Vocabulary
What is a small volcano; usually erupts only for a short time?
cinder cone volcano
Which type of lava flows most like dripping wax?
What is pahoehoe lava?
What type of volcano covers a large area of land?
What is a shield volcano?
Where do most volcanoes form?
What is where tectonic plates collide?
What is a large, flat area covered by lava?
lava plateau
What type of lava is formed by jumbled heaps of sharp chunks near the volcano vent?
What is blocky lava?
What is the most common volcano?
What are composite volcanos?
What is a ring of volcanoes that are located on convergent plate boundaries in the Pacific Ocean?
What is the Ring of Fire?
What is a depression created when the roof of a magma chamber collapses?
a caldera
What would cause lava to be very runny?
What is low silica content?
What type of volcano is made up of pyroclastic material and produces mild explosions?
What is a cinder cone volcano?
Where are volcanoes more likely to form?
A funnel-shaped pit is called a what?
a crater
What type of lava pours out quickly and forms a brittle crust?
What is Aa lava?
This type of volcano is also known as a stratovolcano?
What is a composite volcano?
When tectonic plates move away from each other they form what type of boundary?
What is a divergent boundary?
What type of volcano is created by a combination of explosive and nonexplosive eruptions?
A composite volcano
What type of lava erupts underwater and looks like rounded lumps?
What is pillow lava?
This type of volcano is formed by layer upon layer of lava?
What is a shield volcano?
What is an area of deep cracks that form between two tectonic plates that are pulling away from each other?
What are rift zones?