Show:
Latitude and Longitude
Earthquakes
Tectonic Plates
Volcanoes
Misc.
100
Lines or parallels that circle the globe from East to West.
What are latitudes?
100
The underground origin of an earthquake.
What is a focus?
100
In 1912, Wegener was responsible for this theory.
What is continental drift?
100
This type of volcano has mafic magma and quiet eruptions.
What is a shield volcano?
100
Places within plates (far from boundaries) where magma comes up.
What are hotspots?
200
Lines or meridians that circle the globe from North to South.
What are longitudes?
200
Measures ground movement.
What is the Richter Scale?
200
A theory that describes the way in which new sea floor is created.
What is sea-floor spreading?
200
The extremely active volcanic zone surrounding the Pacific Ocean.
What is the Ring of Fire?
200
Type of plate boundary where plates collide due to compression forming mountains, volcanoes, or trenches.
What is a convergent plate boundary?
300
The area between 23.5 deg N (Tropic of Cancer) and 23.5 deg S (Tropic of Capricorn) is known as this.
What are the tropics?
300
These waves have an up and down motion and can only travel through solids.
What are S waves?
300
At this type of plate boundary, plates are pulled apart by tension.
What is a divergent boundary?
300
This magma is rich in silica and makes sticky lava and explosive eruptions.
What is felsic magma?
300
This instrument measures seismic waves.
What is a seismograph?
400
Latitudes and longitudes are divided into these.
What are degrees, minutes, and seconds?
400
These types of waves include L and R waves; they can cause the most damage.
What are surface waves?
400
When the Earth's magnetic poles reverse.
What is magnetic reversal?
400
This type of volcano has extremely explosive eruptions and a lot of pyroclastic material.
What is a cinder cone?
400
This type of wave moves in a push-pull motion and can travel through solids, liquids, and gases.
What is a P wave?
500
The Prime Meridian and the Equator both have this coordinate.
What is 0 degrees?
500
Zones on the Earth where no seismic activity is detected.
What are shadow zones?
500
This force pushes plates away from the Mid-Ocean Ridge.
What is ridge pushing?
500
Fragments of rocks that form during eruptions - vary by size.
What is pyroclastic material?
500
This is the only type of event that can occur at transform boundaries, when two plates slide past each other due to shearing.
What is an earthquake?