Vocabulary
The sudden pushing out of something, such as lava from a volcano
What is an eruption
There are ______________ main layers of the Earth.
What is 5 layers
What are the three kind of boundaries
What is divergent, convergent, and transform
What does Mesosaurus mean?
What is "middle lizard".
Hot liquid rock BELOW the surface of Earth
What is magma
The thickest layer of the Earth
What is the mantle.
The mid-ocean ridge is an example of a ____________________ boundary and ___________________ occurs here where new ocean floor is formed.
What is divergent boundary; sea-floor spreading
Name the four types of fossils
What is trace, mold, cast, and true form fossils.
An underwater mountain range formed when two plates move apart
What is mid-ocean ridge
Name the two types of crust and where they can be found
What is oceanic and continental crust
oceanic = ocean
continental = land on the continents
A massive horseshoe-shaped area around the edges of the Pacific Ocean where a large number of earthquakes and volcanic eruptions happen
What is The Ring of Fire
Where can the Mesosaurus fossils be found?
What is South America and Africa.
States that youngest rocks of ocean floor are at divergin boundaries, moving outward
What is seafloor spreading
The two ways to categorize the Earth are
What is compositional and mechanical
Describe the difference between a cast fossil and a mold fossil.
What is
mold: when an organism dies and is covered by sediment forming an impression.
cast: formed when minerals fill the inside of a mold fossil. (3D cast)
What is plate boundary
Name the two elements that the core is made out of
What is iron and nickel
Continental Drift Theory was not accepted because it did not explain this
What is how the continents moved
What is subduction?
What is geological process where one tectonic plate moves under another and sinks into the Earth's mantle
What is keeping them safe from being destroyed.