Layers of the Earth
This is the thin, solid outer layer of the Earth, where we live
Crust
What was the name of the super continent that was formed over 300 million years ago?
Pangea
Earth's outer layer is broken into large pieces called these
Tectonic Plates
What are the two major gases that make up the atmosphere?
Oxygen and Nitrogen
Which layer of the Earth is the thickest?
Mantle
Which layer is located beneath the crust and is made of solid rock that can slowly flow?
Mantle
What is the continental drift theory?
A theory that states the continents at one point drifted apart from each other
Where are the tectonic plates found?
The core is made up of what?
Nickel and Iron
Which layer is the only liquid layer?
Outer Core
What is the hottest and deepest layer?
Inner Core
What is one piece of evidence that supports the Continental Drift Theory?
Matching fossils, matching rocks, matching landforms, or the fit of the continents
Which boundaries move towards each other
Convergent Boundaries
Which boundary primarily causes earthquakes and why?
Transform due to the tremendous amount of pressure and friction
Which boundary is associated with sliding past each other?
Transform Boundaries
What are the two types of crust and where are they found?
Continental and oceanic. Continental is found under land whereas oceanic is found under water
Why was the discovery of matching fossils on continents separated by oceans important evidence?
It suggested that the continents were once connected or much closer together
When one tectonic plate sinks beneath another plate, this process is called?
Subduction
What is a crack in the ground called caused by an earthquake?
Fault
Who was the scientist that discovered the Continental Drift Theory?
Alfred Wegener
Inner Core- Outer Core- Mantle- Crust
What year did Alfred Wegener come up with the Continental Drift Theory?
1912
What can form from divergent boundaries
Valleys, Mid ocean ridges, volcanoes
Which part of the Earth is found beneath the lithosphere? (THINK ABOUT YOUR IXL)
Asthenosphere
What causes the tectonic plates to move?
Convection Currents