Types of Plate Boundaries
Landforms
Tectonic Plates
Layers of the Earth
Random!
100
What is the name of the plate boundary where plates move apart together?
Divergent
100
What type of plate boundary forms faults?
Transform
100
What is the definition of tectonic plates?
Broken pieces of crust that move
100
What is the outermost layer of the Earth?
Crust
100
How are tsunamis formed?
Underwater earthqaukes
200
What type of plate boundary is this diagram showing
oceanic-continental convergent
200
How are rift valleys formed
Divergent plate boundaries
200
What is the name of the super-continent that Alfred Wegener identified?
Pangaea
200
What are the 2 types of crust?
Oceanic and Continental
200
What was the name of the person who came up with the convection current theory?
Arthur Holmes
300
What plate boundaries cause earthquakes?
Convergent, Divergent, Transform
300
What forms at convergent boundaries?
Mountains, deep ocean trenches, volcanos.
300
What 3 things did Alfred Wegener use to piece together the super-continent
1. Fossils
2. Mountain Ranges
3. Shape of the continents
300
Convection currents are found in this layer of the Earth.
Mantle
300
Why was the continental drift theory not accepted?
there was no reason for why the plates move.
400
Describe the difference between the 3 types of plate boundaries?
Divergent: Plates move apart, divide
Convergent: Plates move together, collide
Transform: Plates slides against each other, slide
400
At what 3 types of plate boundaries do volcanoes form?
Oceanic-oceanic convergent
Oceanic-continental convergent
Divergent
400
Describe the Continental Drift theory.
The theory that Earth's continents were once joined as a single supercontinent, Pangaea, and have since moved to their current positions
400
What are the differences between the lithosphere and asthenosphere
Lithosphere: Where tectonic plates are, made up of the crust and top part of the mantle
Asthenosphere: What moves the tectonic plates, where convection currents are, below the lithosphere
400
What is the total number of major and minor tectonic plates?
15
500
What causes subduction.
A denser tectonic plate gets pushed under the other tectonic plate.
500
How is new crust created at a Mid-Ocean Ridge?
When plates diverge or seperate, magma comes up from the mantle and hardens to create new crust.
500
Explain how tectonic plates move.
Convection currents in the mantle
500
Describe a difference and similaritiy between the inner core and the outer core
Both made of iron and nickel
Outer core is Liquid
Inner core is solid
500
In what layer is the Earth's magnetic field?
Outer Core