Earth's Layers
Continental Drift Theory
Earthquakes
Volcanoes
Mountains
100
This is the layer of the Earth that is the smallest in thickness.
What is the crust?
100
The name given to the continents when they were believed to once all be joined together two hundred million years ago.
What is Pangaea?
100
A scientist who studies Earthquakes is called this.
What is a Seismologist?
100
Volcanoes are always predictable. (true or false)
What is false?
100
These two occurences help to create mountains. Hint: they both start with the same letter.
What is faulting and folding?
200
Below the Earth's crust is this layer.
What is the mantle?
200
Plates pushing together are referred to as this type of plate.
What is converging plates?
200
Aftershocks are actually these.
What are smaller earthquakes?
200
In this famous location, Mt. Etna erupted in 79 A.D.
What is Pompeii?
200
Th upper or top part of folded rock is referred to as this.
What is anticline?
300
The outer core is found in this state of matter.
What is liquid?
300
This German man devised the continental drift theory.
Who is Alfred Wegener?
300
The measurement scale used to measure the magnitude of earthquakes is called this.
What is the Richter Scale?
300
Volcanoes found around the Pacific Ocean are a part of this.
What is the Ring of Fire?
300
The bottom part of folded rock is called this.
What is syncline?
400
The matter inside this part of the Earth is so compressed it is a solid at very high temperatures.
What is the inner core?
400
Diverging plates happen when the Earth's plates do this.
What is move apart?
400
Once you have duck and covered and the earthquake stops, what is the first thing you do.
What is count to sixty?
400
When volcanoes are not active, we refer to them as being in this state.
What is dormant?
400
Mountains that are jagged at the top would be considered to be in this age category.
What is young?
500
The mantle and the crust together is called this.
What is the lithosphere?
500
Scientists believe this is one of the main causes for plate movement (think back to our Heat & Temperature Unit).
What are convection currents?
500
The the fastest earthquake waves are called this and can push through solids, liquids and gases.
What are primary or p waves?
500
This volcano erupted in Washington State in the late 1900's.
What is Mt. Saint Helen's?
500
This mountain range is considered to be the youngest in the world.
What are the Himalayas?
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