boundary types
A boundary where two plates are moving towards eachother sometimes creating a mountain chain or causing subduction.
what is a convergent boundary?
There are this many hotspot volcanos on the earth.
what is 50 hotspot volcanos?
The current that moves the tectonic plates.
what are Convection currents?
The mid-atlantic ridge is this many miles wide.
what is 1000 miles?
The ring of fire looks like this character accourding to our class.
what is Kermit?
A boundary where two plates are moving away from eachother causing new crust to form.
What is a divergent boundary?
a buildup of heat and magma in the earths mantle that comes up through the crust to create volcanos/ islands
what is a hotspot?
This happens when two plates collide and one goes under the other.
What is subduction?
The mid-atlantic ridge is this many years old.
What is 200 million years old?
Continetal rift causes this to happen to a continent.
What is rupture?
When two tectonic plates slide past eachother but get stuck causing the build-up of stress then releasing cause large earth quakes.
what is a transform boundary?
There are this many hotspots in hawaii
What is 1 hotspot?
Thhis happens when two plates collide and smash together to go upwards.
What is mountain building?
The mid-atlantic ridge is this many miles long.
What is 10,000 miles?
Continental drift takes this many years to complete a cycle.
what is 200 million years?
True or false, Volcanos can form at transform boundries.
Fasle
This hotspot volcano in yellowstone national park is also what?
what is a supervolcano?
This is a fault line stretching from the top of cali to the bottom.
What is the San Andreas Fault?
A volcano erupts under water causing this to the seafloor.
What is seafloor spreading or spreading?
Convection currects cause magma to flow like these two ingrediants .
what is mollasis/honey?
True or false, Volcanoes only form at convergent boundries.
False
The oldest hawaiian island created by a hotspot is this many years old
DAILY DOUBLE WORTH 1000 POINTS!!
what is 5.1 million years old?
The layer of the earth that the tectonic plates sit on.
What is the lithosphere?
This is the worlds longest mountain range.
What is the midatlantic ridge?
The worlds largest volcano is part of this kermit shapped area.
what is the ring of fire?