Plate Motion 1
Which statement is true about Earth's Outer Layer?
a. Underneath both soil and ocean, Earth's Outer Layer is made of sand and water.
b. Underneath both soil and ocean, Earth's Outer Layer is made of hard, solid rock.
c. Underneath soil, Earth's Outer Layer is hard, solid rock. Underneath the ocean Earth's Outer Layer is made of sand.
B
What landforms form at Divergent Plate Boundary?
Mid Ocean Ridge
What is a divergent plate boundary?
2 plates move apart
What is the Supercontinent called?
Pangea
How did the Mesosaurus Fossils end up on 2 different continents?
Continental Drift (Divergent Plate Boundaries)
What is a Convergent Plate Boundary?
When two plates move towards each other
What landform forms at a Transform Plate Boundary?
Fault
Who was the scientist that formed the hypothesis that our continents were once one large supercontinent/landmass?
Alfred Wegener
What is the layer of soft, solid rock underneath Earth's plates?
Mantle
What do you call a boundary that is moving apart?
Divergent
How does a Trench form?
Convergent plate boundary when one plate sinks into the mantle. (subduction)
What happens to the plates at a Transform Plate Boundary?
Slide past each other
What did the silly puddy represent in our hands on model of the layers of earth?
The mantle
Bonus Points: What characteristics do the silly puddy and mantle share?
What causes Earthquakes?
Movement of plates at a transform boundary
How does a Mid Ocean Ridge form?
Divergent Plate Boundary. Rock rises from the mantle and hardens to add new rock to the plates.
What is a tectonic plate?
Large section of Earth's Outer Layer/Crust
What are the 4 Layers of Earth
Crust, Mantle, Outer Core, Inner Core
True/False
Volcanic Activity and Earthquakes happen at plate boundaries.
True
True/False
Plates are always in motion.
True
True/False
Plates float on top of the mantle.
True
Bonus Points:
The mechanism that causes the mantle to stay in motion is called ________.
(Hint: Think of a lava lamp)