Layers, like onions!
Outermost layer of the earth
What is the crust?
Plates moving towards each other:
What is a convergent boundary?
Greek word that means "All Earth"
What is Pangaea?
The seafloor is getting wider at this type of boundary:
What is divergent?
A flat, wide volcano, formed from frequent, quiet eruptions:
What is a shield volcano?
At the very center of the earth
What is the inner core?
Plates moving away from each other:
What is a divergent boundary?
Meteorologist who first proposed the theory:
Who was Alfred Wegener?
Hot stuff rises, cold stuff sinks:
What is a convection current?
Composite cones are also known as:
What are stratovolcanoes?
Between the crust and the core
What is the mantle?
Plates grinding past each other horizontally:
What is a transform boundary?
Which continent looks like it might match up with South America?
What is Africa?
A scientist who studies rocks:
What is a geologist?
Rock with a lot of this element is 'sticky' and traps gasses, leading to KABLOOIE eruptions!
What is silica?
A plastic-like layer, the rock is under so much pressure that it flows!
When one plate sinks below another, back into the mantle, and is melted down & recycled.
What is a subduction zone?
One of the things found on different continents that is evidence of Continental Drift:
What are fossils, glacier grooves, and rock formations?
A mountain range in the middle of an ocean:
What is a mid-ocean ridge?
The most dangerous part of an eruption, because you can't run that fast!
What is a pyroclastic flow?
The Lithosphere is made of these TWO layers:
Over what type of boundary is Iceland forming?
What is a divergent boundary?
Which fossil would make the BEST evidence of seafloor spreading, wooly mammoth, or shark? (And WHY?)
Mammoth, because sharks could swim across the oceans, but mammoths can't.
Who proposed the theory of Seafloor Spreading?
Who was Harry Hess?
The Pacific Ocean is surrounded by volcanoes. Nemo knows this is called the:
What is the RING OF FIRE!