Question | Answer |
Cinder Cone | A steep cone made of volcanic ash,cinders,and bombs around a volcanoes opening |
Composite Volcano | A tall cone where layers of lava alternate with layers of ash and other volcanic material |
Caldera | The hole at the top of a volcano formed when the roof of a volcanoes opening collapses |
Volcanic Neck | A deposit of hardened magma in a volcanoes pipe |
Geothermal Activity | When underground water is heated by magma |
Geyser | Water and steam which build up pressure underground and erupts |
Island Arc | A stream of islands formed by volcanoes along a deep ocean trench |
Hot Spot | Where magma from within the magma melts through the crust above it |
Lava Flow | Area covered by lava as it flows out of a volcanoes vent |
Dormant | A volcano that isn't active ,but can become active in the future |
Extinct | a volcano that is inactive and most likely will never erupt again |
Volcano | A weak spot in the crust where magma has come to the surface |
Magma | A molten mixture of rock which forms substances,gases,and water from the mantle |
Lava | Liquid magma that reaches the surface |
Ring of Fire | a line of volcanoes surrounding the pacific ocean |
Magma Chamber | a pocket beneath a bolcon
a pocket beneath a volcano where magma collects |
Pipe | a tube where magma moves form the magma chamber to earth's surface |
Vent | an opening where molten rock and gas leave a volcano |
crater | an area which forms around a volcano's opening |
viscosity | a liquid's resistance to flowing |
Cilica | material found in magma that is formed from the elements of oxygen and silicone |
Shield Volcano | a gently sloping mountain made by layers of lava and formed by quiet eruptions |
Batholith | a mass of rock formed when a large body of magma cools inside the crust |
Pyroclastic flow | the explosion of ash cinders bombs and gases during an explosive volcanic eruption |