earth layers
crust
what is the layer we are living on and the most thin layer of the earth
what is magma
magma is when its underneath the volcano
what is sea floor spreading
when new oceanic crust forms
what are techtonic plates
A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere
what is the ring of fire
what is. where a lot of earth quakes and volcanos occur
mantle
The layer of the earth which is the biggest
what is lava
lava is where it is coming out of the volcano
what is a oceanic plate
techtonic plates that are on the bottom of the ocean
how many major techtonic plates are there
there are 7 major plates
what is the three plate boundarys
convergent, divergent, transform
outer core
it is around the core and made of iron
what is a active volcano
it is when a volcano can erupt anytime or in the near future
can volcanos form in the ocean
yes there is 4000 volcanos on the floor of the ocean
what are the names of the major plates
they are the African plate, Antarctic plate, Eurasian plate, Indo-Australian plate, North American plate, Pacific plate and South American plate.
why did the earth's land seperate to where it is today
techtonic plates
core
the center of the earth where it is fully solid because of the heat and made of iron and nickel
what is a sleeping volcano
What is when a volcano has not erupted in a long time
how much of the earth is ocean
75% of the earth is ocean
why are the continints all seperated
what was Alfred Wegner's theory
his theory was that something moved the contenints and they were once all together
which layer is the most dence
the core
what is a dead volcano
what is. When a volcano will never erupt again
can mountains form under the ocean
yes the mountains can be formed by the techtonic plates
why do we study plate tectonics
They are a important role in earth's giological terms
was he right (yes or no)
yes he was right