Show:
Earthquake
Igneous Rocks
Sea Floor
Earth Layers
Misc.
100
primary waves, push-pull waves, arrive first at seismic station.
What is a P wave?
100
What would obsidian be classified as?
Glassy and light
100
What are 2 of the 3 ways that scientists learn about the ocean floor?
Possible answers were: SONAR Magnetometer Subs
100
Top layer
The crust
100
What is the outer core's form.
Liquid
200
secondary, waves, up and down motion, arrive second.
What is a s wave?
200
What would Granite be classified as?
Porphyritic, light, and intrusive.
200
What are some of the features of the sea floor?
Continental shelf Continental slope Mid-ocean ridge Seamount Trench Abyssal Plain
200
Second layer
Uppermost Mantle
200
How do we learn about earth's interior
Indirect methods
300
Cause for an earthquake.
What is the stress on the rocks.
300
Why is obsidian classified as light?
Because it has 70% or more non-crystallized silica.
300
What it created at mid-ocean ridges?
New sea floor.
300
Fourth layer
Upper mantle
300
What is the difference between continental crust and ocean crust.
Ocean contains iron and magnesium while continental is 4 times thicker.
400
Where earthquakes commonly occur.
They occur commonly around faults.
400
Is Andesite light, intermediate, or dark?
Intermediate
400
What is the main way we know sea floor spreading happens?
Trick Question we use many.
400
After upper mantle
Lower mantle
400
What is the password to most people's cell phone if it is a word password?
password
500
Three forces that act on rocks.
What is compression, tension, and shear?
500
What are rocks classified by?
Color and texture
500
How do we know sea floor spreading happens
Topography Sedimentary Samples Paleomagnetic research
500
Center of earth
Inner core
500
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