Plate Boundaries
Theory of Continental Drift
Seafloor Spreading/Pate Tectonics
Miscellaneous
Lena Trivia
100
What are the three main types of plate boundaries?
Convergent, Divergent, & Transform
100
What was the name of the supercontinent that all our continents were formed into years ago?
Pangaea
100
How many plates is the Earth's crust broken up into?
A. 32
B. 12
C. 7
D. 28
C. 7
100
What is one of Ms. Englebert's favorite foods?
A. Bagels
B. Pizza
C. Tomato Soup
D. Hamburger
A. Bagels
(Also potatoes!! 😛😛)
100
What is the zip code for Lena?
54139
200
Describe the motion at each type of plate boundary.
Divergent - plates move away from one another
Convergent - plates collide together
Transform - plates slip past each other in opposite directions
200
Describe the Theory of Continental Drift.
The continents were one landmass called pangea. As the Earth shifted, the continents drifted apart into where they are today.
200
What is the mechanism (reasoning) for continents drifting apart?
Seafloor spreading causes the continents to move slowly over time.
200
What is the theory of plate tectonics? What does it explain?
The pieces of Earth’s lithosphere are in constant slow motion, driven by convection currents. It explains how Pangaea moved.
200
How many gas stations are there in Lena?
3
300
What is the most well-known example of a divergent plate boundary?
Mid-Ocean Ridge
300
Why was the Theory of Continental Drift not accepted and was rejected?
There was no mechanism or explanation to what caused the continents to move from Pangea to their current day positions.
300
Explain what the Mid-Ocean ridge is.
A mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.
300
Describe how the oceans floor is "recycled" using the words subduction or subducts.
The new ocean floor rises up out of the mid-ocean ridge. It spreads out until it get the farthest from the ridge it can possibly get. Then it subducts back to the Earth into the trench.
300
What year was Lena Public School District founded?
1918
400
What are the three types of convergent plate boundaries?
Oceanic-oceanic
Oceanic-continental
Continental-continental
400
What was the name of the scientist who came up for with the Theory of Continental Drift?
Alfred Wegener
400
Explain what a deep-ocean trench is and/or how they occur.
A deep-ocean trench occurs when one plate is subducted beneath another and a trench is formed. 
400
Describe the process of how seafloor spreading moves the continents over time.
The magma which pushes up at the mid-ocean ridge provides the new land pushing the plates, and the subduction zones gobble up the land on the other side of the plates.
400
What is Lena's town slogan?
Small Community, Great Opportunity
500
Describe the process of subduction.
Subduction is when one plate slides underneath another plate because it is more dense than the plate on top.
500
What are two pieces of evidence that supported continental drift?
Continents look like they could fit together like a puzzle
Mountain ranges from one continent to another line up
Fossils of tropical plants in current day cold climates
500
Describe how the Andes Mountains were formed.
Two plates met at a convergent boundary and collided together and "scrunched" the continental crust together forming the Andes Mountains.
500
What are two pieces of evidence of seafloor spreading?
Magnetic Strips
Molten Material
Drilling Samples (ages of rock)
500
In the year 2000, what was the population of Lena?
769
(+/- 15)