Vocab 1
When earth shakes it is called an _____.
Earthquake
The thickest part of the earth is the _____.
Mantle
The center of the Earth.
Core
Magnitude
The molten rock that erupts from the volcano along with ash and hot gases.
Lava
The opening in the Earth that allows magma to reach the surface.
Volcano
When to plates slide past each other, what occurs?
Earthquakes
Different types of plate ___________ produce different landforms.
movement/motion
Focus
What is a shield volcano?
Nonexplosive
Wide, low shape
This is where the earthquake is the most severe.
When a plates pull away from each other, what does it cause?
Rift, separation, trench, crack
A break in the earth's crust where rock on one side can move in relation to rock on the other side.
Fault
A device scientists use to predict if an earthquake will occur.
Seismograph
What is a cinder cone volcano?
Explosive
It has a steep slope
When an earthquake's energy moves from the focus it produces _____.
Energy waves
When two plates move together what happens?
They bend and fold forming mountain ranges
The theory that Earth's crust is divided into plates and they are always moving.
Plate Tectonics
What scale is used to measure the magnitude of an earthquake?
Richter scale
The ____________ of a volcano depends on how that volcano erupts.
The shape
The mantle makes up what fraction of the Earth's mass?
The crust makes up about what percent of Earth's mass?
1%
The plate tectonic theory uses two different types of crust. What are they?
Oceanic and continental crust
Earthquakes are rated on a scale from ____ to ____.
What number magnitude does an earthquake need to cause heavy damage?
What number or less is an earthquake to mild to feel?
6
2
What is a composite volcano?
Alternative between explosive and nonexplosive
Steeper slope