View
215
Download
0
Category
Tags:
Preview:
Citation preview
Plate Tectonics Review
http://www.mymapman.com/images/Plate%20Tectonics-Wenschow800p.jpg
This layer of the earth floats on a lower fluid layer.
The Lithosophere
* Transform Boundary* Divergent Boundary
* Convergent Boundary
Name the three kinds of Plate Boundaries
What are the three types of seismic waves?
1) Primary Waves (P waves)2) Secondary Waves (S waves)
3) Surface Waves
Define Radiation And give an example
Radiation is the transfer of heat through EMPTY SPACE.
What should you do if you are outside when an earthquake
occurs?
Move to open areaStay away from trees/ buildings
Stay away from power linesSit down
What are 3 pieces of evidence of Continental Drift?
1. Continents fit together like a puzzle.
2. Dinosaur fossils in S. America and Africa.
3. Tropical plant fossils in the Arctic
Explain a Transform Boundary
A transform boundary is when plates slip past each
other in opposite directions
http://www.visionlearning.com/library/modules/mid66/Image/VLObject-3571-060216020229.jpg
If it took 50 sec. for the S wave to arrive, how far away is the epicenter?
About 490 km awayhttp://www.visionlearning.com/library/modules/mid66/Image/VLObject-3571-060216020229.jpg
Explain a Divergent BoundaryA divergent boundary is when plates move away from each
other
http://www.indiana.edu/~geol116/week7/week7.htm
Describe an Earthquake.
An earthquake is a violent shaking of the Earth's crust,
due to movement of rock beneath the Earth's surface.
Stress that pushes rock in two opposite, horizontal directions
Describe Shearing Stress
http://www.msnucleus.org/membership/html/k-6/pt/plate/5/images/transform.gif
What are two things that you can do to your house to make it
“earthquake safe?”
Bolt shelves to wall.Remove hanging items from
wall above bedBolt house to foundationSecure chimney to house
Explain Convection Currentsand give an example
Convection Currents is the movement of heat through a
fluid (liquids or gases).
Describe Compressional Stress
Stress that squeezes rock until it folds or breaks. This occurs when plates collide with each
other.
http://earthquake.usgs.gov/learning/glossary.php?term=compressional%20stress
How fast are the continents moving?
a. 5 feet per yearb. 1 foot per year
c. 2-3 cm year
The continents move about 2.5 cm per year
Mountains form from Compressional stresses
(folding)
and from Faults (uplifting a block of rock
between two normal faults)
What are the two ways that mountains are formed?
Seismograph
What is used to record the ground's movement during an
earthquake?
What is an example of a destructive force that shapes the
earth?
Earthquakes, weathering, erosion, flooding, glacier
movement
Describe Tensional Stress
A force that pulls on the crust, stretching rock so that it
becomes thinner in the middle.
http://www.eoearth.org/upload/thumb/4/4e/Syncline_fold_diagram.gif/250px-Syncline_fold_diagram.gif
Separate sections of the lithosphere are called...?
Plates
Define Conduction and give and example
Conduction is the transfer of heat by DIRECT CONTACT.
Draw a picture of seafloor spreading
Label #1, 2, 3, 4
1.
2.
4.
3.
Which two scales measure the strength of an earthquake?
And, which scale is most accurate?The Richter Scale and the
Moment Magnitude Scale are used to measure earthquakes.The Moment Magnitude Scale
is more accurate.
Explain a Convergent BoundaryA convergent boundary is when
plates move towards each other
http://stloe.most.go.th/html/lo_index/LOcanada4/403/html/3_en.htm
What is the difference between the focus and the epicenter of
an earthquake?
The focus is deep in the Earth where the earthquake
originates. The epicenter is the location on the surface of the earth, directly above the focus
What should you do if you are inside when an earthquake occurs?
Get under a sturdy object like a table.
Sit against an inside wall and protect neck and head
Describe Faults
Breaks in the Earth's crust where rocks have slipped
past each other
What type of rock makes up the oceanic crust?
Basalt
What drives the plate movement? How is the lithosphere able to float
around?
Convection Currents in the Asthenosphere move the plate
above
Draw a picture of subduction
What type of rock makes up the continental crust?
Granite
What is the difference between the inner core and the outer core of
the Earth?
The inner core is solid nickel & iron
The outer core is liquid nickel & iron
What is a Tsunami?
A Tsunami is a large wave formed by an earthquake in the ocean floor. Wave grows once it reaches the shallow shore. Can
be 10 stories high
Label #1, 2,
1.
2.
Lithosphere
Asthenosphere
Recommended