Show:
Earths Layers
Mountains of the Earth
Earthquakes
Volcanoes
Plate Tectonics
100
Center of the earth, comprised of mostly solid iron. Extremely dense with a temperature of ~5000 degrees.
What is Inner Core
100
Sharp jagged ranges formed from huge tilted blocks of rock.
What is Fault-block mountain
100
The place on earth where earthquakes usually form
What is Faults (fault lines)
100
The name for lava when it is still inside of the earth.
What is Magma
100
The earths crust is divided into this number of main plates
What is 30
200
Layer of earth that is thickest through mountains and thinnest through the ocean.
What is Crust
200
Forces inside the earth raising the crust
What is Upwarped Mountain
200
Point inside the earth where movement first occurs and energy is released.
What is Focus
200
Broad volcano with gently sloping sides. (Hawaii)
What is Shield Volcano
200
Earthquakes and volcanoes both form here
What is Plate boundaries/fault lines
300
Composed mostly of molten metal. Stops one type of seismic wave and slows down another.
What is Outer Core
300
Layer upon layer of lava stacking on top of one another
What is Volcanic Mountain
300
Instrument used to measure earthquakes
What is seismograph
300
Most famous type of volcano. Strong eruptions that don't last long.
What is Cinder Cone volcano
300
This Volcano erupted in 1980 in Washington state.
What is Mt. St. Helens
400
Largest layer of Earth's interior.
What is Mantle
400
The Appalachian Mountains
What is Folded mountain
400
Scale used to measure the magnitude (strength) of an earthquake.
What is The Richter Scale
400
Forms where one plate sinks below another. Alternating layers of lava and tephra.
What is Composite Volcano
400
80% of the worlds earthquakes happen here
What is Pacific Ring of Fire
500
The approximate percent of the earth that the mantle and outer core make up.
What is 97% (any where from 92-98 is correct)
500
When a mountain erodes it becomes lighter, the crust then raises the mountain up due to this change in weight.
What is the principal of Isostasy
500
The three types of waves produced from an earthquake.
What is Primary, Secondary, Surface
500
The largest active volcano on earth is located in this state.
What is Mauna Loa, Hawaii
500
Earths plates move around on this.
What is the asthenosphere.