Volcanoes
What is the difference between magma and lava?
Magma is molten rock found underground, while lava is found above the ground
What is magnitude?
The strength of an earthquake
Whats a tsunami
A tsunami is a series of giant powerful ocean waves
What is the definition of a volcano?
A vent in the earths crust, through which magma, steam, and ashes are forced
What is focus?
The central point where forces, waves, or rays coverage or or originate
What is seafloor spreading?
The process with new crust forms and old crust is pushed outward.
What is a hotspot?
A place on the Earth surface that is directly above a column of rising magma.
In what kind of boundary do plates slide away from each other?
Divergent boundary
What’s a P wave
the first small upward electrical deflection on a normal electrocardiogram
What happens at a subduction zone?
Tectonic plates are pushed under each other.
What is the epicenter?
The epicenter is where an earthquake begins
What is a S wave
a type of seismic body wave that travels through the interior of the Earth during an earthquake
what does a tiltmeter do?
It uses liquid to register change in the earth
List what these three faults do
.normal
.reverse
.strike-slip
Normal=hanging wall slides down
Reverse=hanging wall slides up
Strike-slip=blocks slide past each other
What’s a systematic wave?
an organized, patterned, or methodically structured wave phenomenon rather than a random fluctuation