Show:
Formation
Zones & Material
Types of volcanoes
Types of eruptions
Prediction & Effects
100
molten rock inside the earth
What is magma?
100
Rim of the Pacific Ocean where volcanoes erupt
What is Ring of Fire?
100
small, tall and steep volcano
What is a cinder cone?
100
buildup of volcanic gases, minor earthquakes. and change in magma temperature
What are way to predict volcanoes?
200
a vent in the Earth's crust through which lava, steam, ashes and gases are forced
What is a volcano?
200
smooth, billowy volcanic material
What is Pahoehoe?
200
This volcano has not erupted in recorded history and will never erupt again.
What is an extinct volcano?
200
Mild eruption of lava and gas with several vents
What is an Icelandic eruption?
200
may block out sun, damage to nature and manmade things and change in the global climate
What are negative effects of a volcano?
300
a body of magma that has hardened underground
What is pluton?
300
a place where one tectonic plate is pushed uner another plate.
What is a subduction zone?
300
funnel - shaped put that often forms around the vents of a volcano
What is a crater?
300
bursts of dark ash, steam and gas
What is a vulcanian explosion?
300
gems created by heat and pressure of volcanic activity
What are diamonds?
400
determines the rate of flow of the lava
What is silicate?
400
lava that had gas trapped in it as it cooled so it is porous and light weight
What is pumice?
400
dome-shaped mountain
What is a shield volcano?
400
most violent volcanic eruption
What is plinian?
400
More fresh water is added to the ocean and realeases more water into the atmosphere.
What is the result of heat from lava melting glaciers?
500
Melted crust rises to Earth's surface under pressure, along with gases and may erupt in a volcano
What happens to subducted crust that has melted?
500
hardens in the shape of a tear
What is a volcanic bomb?
500
location of volcanoes whose vents are open
What are the Hawaiian Islands?
500
Moderate eruption with thick lava, steam and gas
What is a Strombolian eruption?
500
beneath the ocean
Where do most hot spots in the Earth lie?