What is lava?
Molten rock that used to be mantle
What two plates do volcanos occur at?
Separating & Colliding
I am an underwater crack in the Earth's crust caused by the separation of the Eurasian & N. American plates.
Mid- Atlantic Ridge
An area surrounding the Pacific ocean that contains many active volcanos.
Pacific Ring of Fire
Magma is located in this
Magma chamber
At separating boundaries volcanos form in what shape?
Cone shape
When two plates collide, the ___ oceanic plate sinks under the _____ continental plate at a location called the _________ ________
Heavier, lighter & subduction zone
what forms at a subduction zone?
Ocean trench
Line of new volcanos
Volcanic arc
Name the two types of lava
Basic & Acidic
At what plate boundary is basic lava found at?
Constructive
Name the three types of volcanos
Active, Dormant & Extinct
Tourist travels here to experience volcanic activity
Iceland
This is a hole in the ground from which hot water and steam come out.
Geyser
Name the famous type of geyser
Strokkur
What plates can be seen separating in Iceland?
Eurasian & N. American
