Plate Tectonics
Features
Events
Earth's Layers and crust
Theory of Continental Drift
100
The lines on this map of Earth represent these
plate boundaries
100
What happens when two continental plates converge? (What feature is formed?)
Mountains
100
Where do you find the most earthquakes?
On plate boundaries
100
What layer of Earth has a large amount of magma and convection currents?
The mantle
100
Who developed the theory of continental drift?
Alfred Wegener
200
What is the driving force of the movement of Earth's plates?
The convection currents in the mantle?
200
What feature is formed when two plates diverge at the bottom of the ocean?
A mid-ocean ridge
200
What event occurs at a mid-ocean ridge?
Seafloor spreading
200
This type of crust is younger, thinner, and more dense.
Oceanic crust
200
Alfred Wegener said the continents look like they fit together like a what?
A puzzle
300
Most plates contain both continents and what?
Oceans
300
What happens when a continental plate and an oceanic plate converge? (What feature is formed?)
Deep ocean trenches and volcanoes
(As long as you said one of these, you get the points)
300
Volcanoes can occur at hotspots or along convergent boundaries. Of these areas, where would you find the MOST volcanoes?
Convergent boundaries
300
What layer is farthest from the crust
The inner core
300
What did Wegener find on the continents of South America and southern Africa that supported his theory of continental drift?
Animal fossils
400
What do you call the location where two plates meet?
A plate boundary
400
What feature is formed where two plates slide past each other?
A fault line
400
What event occurs when two plates slide past each other?
an Earthquake
400
The older, thicker, and less dense type of crust
Continental crust
400
Wegener cited striations found in North America, South America, Africa, and India as evidence to support his theory. What caused the striations?
Glaciers
500
How many major plates make up Earth?
7 major plates
500
These two events occur at higher elevations
earthquakes and volcanoes
(as long as you said one of them, you will get the points)
500
This event occurs at all types of plate boundaries
Earthquakes
500
When continental crust converges with oceanic crust which one will subduct?
The oceanic crust will subduct
500
What could Alfred Wegener not see that would have proved his theory?
The bottom of the ocean, mid-ocean ridge, or seafloor spreading