Show:
Plate Tectonics
Continental Drift and earth time
Earthquakes
Volcanoes
Miscellaneous
100
The theory that states that earth's surface is made up of large rocky "plates" that move slowly over time.
What is the theory of plate tectonics
100
This super continent began to break apart millions of years ago and has led to the continents we have today.
What is Pangea
100
The sudden release of energy in the earth's surface is called
What is an earthquake
100
This is an opening in which magma and gas from beneath the earth's surface is released.
What is a volcano
100
This man first proposed the idea of Continental Drift
What is Alfred Wegner
200
The area where two tectonic plates meet is often reffered to as....
What is a plate boundary
200
These solidified animal remains were one key piece of evidence that Alfred Wegner used to propose continental drift
What are fossils
200
Earthquakes and Volcanoes most often occur at this "tectonic" area.
What are plate boundaries
200
Shield volcanos have gentle eruptions, that means they contain this type of magma.
What is "less gassy" magma
200
A subduction zone is a paticular form of this kind of plate boundary
What is a convergent boundary
300
A plate boundary in which new crust is forming is called
What is a divergent boundary
300
The age of the earth is estimated to be this age
What is 4.6 billion years old
300
This scale measures the intensity or power of earthquakes.
What is the richter scale
300
This type of volcano usually produces very violent eruptions.
What is composite cones (or stratovolcanoes)
300
The Earth has three main layers. What are they
What are the crust, the mantle, and the core.
400
The San andreas fault in California is where the pacific plate and North American plate slide past each other. This plate boundary is referred to as
What is a transform boundary
400
This theory of Earth's surface ended up providing evidence which supported the idea that continents were once all together?
What is The theory of plate tectonics
400
This tool for measuring earthquakes can detect earthquakes that happen on the other side of the world.
What is a seismograph?
400
This material when on the earth's surface is referred to as Lava
What is Magma
400
The core is broken up into two distinct layers. Which of these layers behaves like a "liquid".
What is the outer core
500
An area where one plate is pulled beneath another plate is reffered to as a
What is Subduction zone
500
The idea that there has been around for billions of years and had many different events that have occured very slowly over this time is?
What is geologic time
500
The paper in which earthquake shockwaves are recorded is called?
What is a seismogram?
500
This volcano erupted in 79 B.C, destroying the roman town of Pompeii
What is Vesuvius
500
The top 100 km of Earth's surface is solid, earning it this title which means stone sphere in greek
What is the Lithosphere