Layers
This is the outermost layer of earth.
What is the Crust?
This type of cloud is made of bits of rock that are spewed out from the volcano upon eruption.
What is an ash cloud?
Earth's inner core is made of this.
What is solid iron?
This happens to Earth's magnetic field about every 500,000 years.
What is, it reverses?
Plates slide past each other at this type of boundary.
What is a transform boundary?
This is what the center of the Earth is called.
What is the core?
This is the bow-shaped depression at the top of a volcano.
What is the crater?
These make up the lithosphere.
What are the crust and upper mantle?
This is the area where plates meet.
What is a plate boundary?
Volcanoes often form at convergent plate boundaries for this reason.
What is subduction?
(plates can slide beneath each other)
The Earth's mantle is in this form or state.
(Hint: Think solid, liquid, gas, or a combination of two or more)
What is solid and liquid?
This is molten rock that has erupted out of the volcano and is flowing down the side.
What is lava?
These are the three sub-types of convergent plate boundaries.
what are ocean/ocean; ocean/continent; continent/continent
To support his theory of continental drift, Wegener used these.
What are fossils?
A huge break in the crust of the Earth is called this.
What is a fault?
This is where the mantle layer is located.
Where is beneath the crust?
This is what the molten rock is called when it is still in the reservoir beneath the volcano, and in the conduit, a pipe that leads from the reservoir to the crater.
What is magma?
Volcanic islands, Volcanic mountains, and valleys are created by this type of boundary.
What is convergent?
Newly formed crust on the ocean floor that pushes old crust apart best explains this Earth action.
What is sea-floor spreading?
This is where you would find the crater of a volcano.
Where is the top?
On dry land, the Earth's crust is about this thick.
What is 25 miles?
This is an opening on the side of a volcano out of which lava flows.
What is a side vent?
Major earthquakes are caused by this type of boundary.
What is a transform boundary?
Plates move away from each other at this type of boundary.
What is a divergent boundary?
This is a structure that can form on the side of a volcano, kind of like a mini volcano cone.
What is a parasitic cone?