Download Plate Tectonics Note Guide

Plate Tectonics Note Guide
Name:
Earth's Layers
1. Give a brief description of each of the layers of Earth's Interior:
A. Crust:
B. Mantle:
C. Asthensophere:
D. Outer Core:
E. Inner Core:
2. Label the layers on the diagram below:
A. _________________
B. ________________
C. ________________
D. ________________
E. ________________
.
A
B
C
D E
Plate Tectonic Theory
4. Theory description:
A. Scientists found a large crack running down the center of most oceans called the
_________________.
B. The two parts of the ocean floor are moving in __________________________________.
C. They also noticed that earthquakes occur in readily definable lines all around the earth that look like
this:
D. The earthquakes mark the boundaries of large chunks
of oceanic or continental crust called ____________
_________________
E. These plates move slowly, but ________________
about as fast as your _________________ are growing.
F. There are _____ main plates and numerous smaller
ones.
5. Why do the plates move? (Explain what is happening
in the diagram)
6. What happens when plates move?
A. This depends on the type of crust _____________ or
________________
And whether the plates are:
B. Colliding – which forms a _______________ boundary, force is _________________
C. Pulling Apart – which forms a _______________ boundary, force is _________________
D. Sliding past each other - which forms a _______________ boundary, force is _____________
7. What happens in the following situations where plates pull apart?
A. 2 plates pull away from each other underwater forms a ______________ ______________
B. 2 plates pull away from each other forms a _____________ ________________
8. What happens when oceanic crust meets continental crust?
A. Contintental crust is _________________ than oceanic crust so continental plates “____________”
higher
B. So when an oceanic plate meets a continental plate, it __________________________________
C. The slab of rock that plunges into the mantle will______________________________________
D. Where this occurs is called a _______________________________________________
9. What forms when 2 continental plates collide?
10. Sometimes 2 plates slide past each other. This is a _________________ boundary and produces
lots of ___________________________ like in the zone around the Pacific called the
_________________________
Reference Pictures: