Layers of the Earth
Which layer of the Earth is the thinnest?
Crust
What is the theory that states that the continents move over time?
Continental Drift
Which landform forms along continental/continental convergent plate boundaries?
Mountains
Earth's landmasses sit on top of large structures called
Tectonic Plates
Which layer of the Earth is the hottest?
Inner core
Which layer of the Earth is the deepest?
Inner Core
Who was the first person to put forth the Theory of Continental Drift?
Alfred Wegener
What landform is common between two divergent oceanic plates?
Mid Ocean Ridge
Why is the bottom of the mantle hotter than the top of the mantle?
The outer core is heating up the bottom of the mantle.
Why is the inner core at the center of the Earth?
It's the most dense.
Which layer of the Earth is the thickest?
Mantle
Name the three types of plate boundaries.
What landform is created when two continental plates diverge?
Rift Valleys
What is the top of the mantle called?
The Asthenosphere
Why is the inner core solid, unlike the outer core?
Pressure
Which layer of the Earth is liquid?
Outer Core
What landform was discovered in the ocean, which helped to support the Theory of Continental Drift?
Mid Ocean Ridges
What type of plate boundary causes the earthquakes in California?
Transform
What is the cause of the mantle's convection currents?
The temperature difference between the top and bottom of the mantle.
Which layer of the Earth is responsible for making the Earth's magnetic field?
Outer core
Which two layers of the Earth are made up of the same materials?
Inner and Outer Core
Name the 4 pieces of evidence that Alfred Wegener used to support his Theory of Continental Drift.
Fossils, continents fitting together, glacial deposits, rock layers/mountains matching on different continents.
What two landforms result form as a result of a continental/oceanic convergent plate boundary?
Volcanoes and trenches
The pulling force exerted by a cold, dense oceanic plate plunging into the mantle due to its own weight is called_______________.
Slab Pull
If given enough time, what two things could happen to the East African Rift Valley?
It will become a waterway or an eroded plain.