Random Vocab
The outer later of the earth
Crust
The violent shaking of Earth's crust by plates pressing against each other with increasing pressure until one breaks free.
Earthquake
An opening where magma and gas erupts
Vent
What is the epicenter?
The place on the surface of the earth right above where the focus is or where the plates bumped into each other.
How big can a composite volcano get?
Up to 10,000 feet tall
Boiling fountains of waters shooting up from the earth's surface
Geyser
Cracks in the earth's crust where movement occures
Fault
A steep cone-shaped volcano made of layers of rock fragments
Cinder Cone Volcano
What happens to the cause the volcano to erupt?
Name 2 of the 3 types of volcanic materials
Lava, rock fragments, gas
The solid upper part of the mantle that joins with the crust.
Lithosphere
The point inside the earth where the earth earthquake begins.
Focus
An opening in the Earth's surface through which melted rock, hot gases, rock pieces, and ash erupt
Volcano
Name 2 of the 3 ways that plates boundaries move
converging, diverging, sliding (transform)
Explain the Richter Scale
It is how the magnitude of the earth quake is measured. It is a 1-10 scale and a 10 is a really bad earthquake.
The location where plates interact with one another at their edges
Plate Boundary
How much damage would a 2 on the Richter Scale cause?
basically nothing or you could not even feel it.
Melted rocks below the surface of the earth
Magma
What are the 2 types of tectonic plates?
Oceanic and Continual
Explain how a seismograph works
Has a base that sits on the ground and a heavy weight that hands from a string. When an earthquake occurs the string adobes the movement so the weight stays still and the base moves below it.
The theory that the continents are moving slowly across the Earth's surface.
Theory of Continental Drift
Seismic waves that move along the surface and causes the most damage.
Surface Waves
When a volcano collapse into a bowl-shaped crater what is exposed at the bottom?
central vent
Who was Alfred Wegener?
German, meteorologist, geologist who suggested that the continents were moving slowly across the earth. Invented the theory of continental Drift
Name 2 thing that can occur at faults
Earthquakes and Volcanoes