an underground chamber where magma builds up and eventually explodes out.
100
what is the shape of a shield volcano?
broad and flat dome
100
what shape?
Cone-shaped
100
what is the shape?
Steep and tall. cone shape
100
Why can violent euruptions cause such damage?
ash buries things, or anything we agree on..
200
volcano
an opening in Earth's crust through which molten rock, rock fragments, and hot gases erupt from.
200
what is the size of a shield volcano?
widest
200
what size?
tallest
200
How tall?
steepest
200
True or false: magma forms as a plate sinking in a transform boundary starts to melt?
false... a subduction zone
300
Pyroclastic Flow
Rock fragments and super hot gases that race downhill.
300
what is a shield volcano built out of?
hardened lava
300
what is it built of?
alternating layers of lava, and rock fragments.
300
what is it made up of?
Eruptions of cinders, rock fragments, and blocks.
300
where does the heat of the hot springs in Yellow National Park come from?
hot spot under North American Plate
400
fault-block mountain
mountains that form as blocks of rock move up or down along normal faults.
400
what are some signs of an eruption? (goes for all of the volcanoes)
change in the tilt of the ground, rising temperatures.
400
name a composite volcano
(take anything)
400
how are they formed.
Cinder cones form when lava flows from a vent, or hole, in the Earth's surface, forming ash that builds up to form the volcano. Scientists refer to this falling ash as cinders, which gives this type of volcano its name.
400
What can Volcanic Ash do?
Suffocate living things, also can cause roofs of buildings to collapse.
500
folded mountain?
a mountain that forms as continental crust crumbles and bends into folds
500
why are shield volcanoes so flat?
the layers of hardened rock lay flat and do pile up. (etc...)
500
Name a city where a famous volcano is, now a tourist attraction... starts with a POM...