Volcanoes
A volcano that will never erupt again.
extinct
Hot melted rock that is underground is called...
magma
The most active volcanoes in the world are located in ____________________
What is the ring of fire?
Name one place where a volcano is most likely to form.
where plates move toward each other, in the ocean where plates are moving away from each other, or over a hot spot.
A volcano that has not erupted in 10,000 years
dormant
thermal energy from volcano causes snow on mountain to melt and this happens
What is mudflow?
___% of the Earth's volcanoes are underwater
60
An area where Earth's plates are moving apart
What is Divergent Plate Boundary
Large, steep volcano with dangerous eruptions that form in mountain chains
What is composite volcano?
affects airplane and lowers the temperature for a year
ash
The Hawaiian Islands are all in line because the Pacific Plate is moving over a stationary ________.
What is the hot spot
An area where Earth's plates are moving together
convergent boundary
Volcanoes common at hot spots and divergent plate boundaries with gentle slopes
What is shield volcano?
When volcanic ash and debris rush down the side of the volcano (most dangerous)
What is pyroclastic flow
After eruption, the top of the volcano collapses down and a ________ forms.
What is caldera?
A place that is not a plate boundary where volcanoes form.
hot spot
Explosive, smaller, steep volcano that are only active for a short time.
What is cinder cone volcano?
Least deadly activity in a volcano.
What is lava flow?
Lava is sticky and flows slowly because it has a high ______________.
viscosity.
A place where composite volcanoes form
convergent plate boundary