volcanoes
what is viscosity
a liquid that moves fast has a lower viscosity and higher viscosity is slower the liquid moves
what plates cause earthquakes
transformation plate and sub-ducting plate
what is the difference between lava and magma
magma is below the ground and lava is on the surface
what type boundary runs through Iceland
the mid Atlantic ridge
what rock is more dense basalt sandstone granite
basalt
what was the biggest eruption
Tambora Wyoming will also count
what wave comes first a p wave s wave or L wave
p wave
what is Pyroclastic flow
pyroclastic flow is gases ejected explosively from a volcano and typically flowing downslope at great speed.
How many tectonic plates are there
seven
What is a Richter scale
A way to measure the strength of an earthquake
can volcano eruptions affect climate and if so how
yes because the ash causes the temperature to drop and causes the earth to have green house gases
what is the most destructive wave
the L wave
What is lahar?
A lahar is a type of mudflow or debris flow composed of pyroclastic material, rocky debris, and water.
what are the three plate boundaries
divergent, convergent, transform
What is the highest recordable # on the Richter scale
10
have there been any human made eruptions ever
yes
can earthquakes be predicted
yes by looking at history of the earthquake pattern
what year did Mount St. Helen erupt
1980
what is the largest plate tectonic
Does viscosity affect the area that an eruption effects
no
where are the most volcanoes found
the ring of fire
will there be more shocks after a big earthquake
yes
when did mt vesuvius erupt
1944
who came up with the idea of continental drift
Alfred Wegener
Where can volcanoes occur where they usually don’t?
They can sometimes occur at random magma hotspots