Plate Tectonics
Earth's Layers
Types of Rocks
Tectonic Plate Motions that Affect the Rock Cycle
Geologic Change Over Time
100
Scientists think that about__________ years ago, the continents were joined at a single landmass.
What is 245 million?
100
This layer consist of hot, slow-flowing, solid rock and is right in the middle of the other layers.
What is the mantle?
100
This type of rock has some interesting layers to maybe even tell when it was formed.
What is a sedimentary rock?
100
The rising of regions of the crust to higher elevations.
What is an uplift?
100
This principle states that geologic processes that happened in the past can be explained by current geologic processes
What is Unitarianism?
200
A single, large ocean called this surrounded Pangaea.
What is Panthalassa?
200
It's the outermost solid layer and we walk on it everyday.
What is the crust?
200
When cooled, this rock can be found near volcanoes and anywhere where the volcanoes have erupted.
What is a igneous rock?
200
An area where a set of deep cracks form.
What is a rift zone?
200
The trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock.
What is a fossil?
300
About 200 million years ago,a large rift formed an Pangaea began to break into these two continents.
What is Laurasia and Gondwana?
300
Daily Double This is the movement of matter that results from differences in density caused by variations in temperature.
What is Convection?
300
This rock forms at high temperatures and pressure change the texture and mineral content of the rock.
What is a metamorphic rock?
300
Daily Double The sinking of regions of the crust to lower elevations.
What is subsidence?
300
A fossilized structure that formed in sedimentary rock by animal activity on or in soft sediment.
What is a trace fossil?
400
About 150 million years ago, a rift between these two continents opened to form the South Atlantic Ocean.
What is Africa and South America?
400
This layer is thought to be made out of iron and some nickel, and it makes up about one-third of Earth's mass.
What is the core?
400
Igneous rocks can also be called this if the magma is cooled beneath Earth's surface.
What is an intrusive igneous rock?
400
When in a rift zone an rift begins to form, this gets lead into the Asthenosphere.
What is Magma?
400
An area describes the weather conditions in the area over a long period of time.
What is Climate?
500
About 50 million years ago, India collided with this country and the Himalaya Mountains were formed.
What is Eurasia?
500
This hot stuff erupts out of volcanoes and has a tendency to cool to form rocks.
What is magma/lava?
500
One more name, but an Igneous rock can also be called this if lava has cooled above Earth's surface.
What is an extrusive igneous rock?
500
Under the crust, the uplift can affect this by it push it upward.
What is the continental crust?
500
Scientists can drill down into icecaps to collect a long cylinder of ice, called this.
What is an ice core?
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