Vocabulary
Earth’s outermost layer of hard, solid rock that is underneath the soil, vegetation, and water.
What is the outer layer or crust?
Earth's outer layer is divided into sections called ____________.
What are plates?
Two plates move away from each other.
What is divergent?
The most intense earthquakes occur at this plate boundary.
What is a convergent plate boundary?
GPS
What is Global Positioning System?
A diagram that shows what the inside of something looks like.
What is a cross section?
The plates of Earth's outer layer __________________.
What is move?
Two plates move toward each other.
What is convergent?
2 landforms found at a convergent plate boundary
What are volcanos and trench?
This plate boundary occurs when two plates slide past each other.
What is a transform boundary?
An underwater mountain range formed when two plates move apart.
What is a mid-ocean ridge?
Earth's plates move on top of a soft, solid layer called the __________________.
What is the mantle?
The type of boundary that lies between South America and Africa.
What is divergent boundary?
The point where an earthquake shockwave starts.
What is the epicenter?
Scientist who first presented the idea that the continents were once connected.
Who is Alex Wegener?
A long, deep indentation in the ocean floor formed when two plates move together
What is a trench?
If you removed all the vegetation, soil, and water from the surface of the earth this would be left.
What is hard, solid rock?
Mid-ocean ridge, trench, and volcano.
What is landforms are at plate boundaries?
The trench we discussed in class that James Cameron explored
What is the Mariana Trench?
The reason we use fossils as evidence for plate motion.
What is we can date fossils back millions of years?
An extinct reptile that lived about 300 million years ago.
What is Mesosaurus?
At divergent plate boundaries, rock rises from the mantle and _______, adding new solid rock to the edges of both plates.
What is hardens?
Besides the continents looking like a puzzle and fossil evidence, what is another clue that led Wegener to his idea of the Continental Drift.
What is mountain ranges, diamond and rock patterns?
This process where one plate goes under another is the main cause for the Ring of Fire's volcanos and earthquakes.
What is the convergent boundary? (subduction)
The theory Wegener proposed which described that all the continents were all joined together in a supercontinent called Pangaea.
What is continental drift?