Layers of the Earth
Volcanoes
Rocks Rock!
Tectonic Plates!
Wild Card
100
What is the thinnest layer of the earth?
The crust
100
Name a type of explosive volcano
Strato volcano (or shield)
100
Name the three types of rocks we have studied
Igneous, metamorphic and sedimentary
100
What direction do DIVERGENT plates move?
Apart (in opposite directions)
100
What are the two types of crust?
Oceanic crust and continental crust
200
In which layer do convection currents occur?
The mantle
200
What do we call the hole in the side of a volcano where lava can escape?
a vent
200
What type of rock is granite?
igneous
200
Which plates move toward one another? (head on)
convergent plates
200
What type of volcano is usually depicted in movies?
A strato volcano
300
What is the inner core made out of?
Nickel and Iron
300
Which type of volcano most likely helped to form the island of Hawaii?
A shield volcano
300
When rocks melt, what do they turn into?
magma
300
What can form as a result of convergent subduction
a volcano or island
300
What do we call the plate movement when two plates scrape against one another as they shift?
Transformation
400
How thick is the crust?
Roughly 25 miles thick/deep
400
What do we call lava when it is still below the earth's surface?
magma
400
How do sedimentary rocks form?
Rocks go through the process of erosion and weathering and break down into small parts. When the small SEDIMENTS break down, they begin to layer and compress into sedimentary rocks.
400
How did Alfred Wegner decide that a supercontinent used to exist? What did we call this supercontinent?
He realized that the continents fit together like a puzzle/ he saw that animals that lived on both continents (so they had to be touching) Pangea
400
Which of earth's layers is the hottest, solid layer?
The inner core
500
What is the name of the rock that mostly makes up the oceanic crust?
basalt
500
What happens to the temperature of the atmosphere when a volcano erupts?
It gets colder because the ash cloud blocks out the sun
500
Describe the process of the rock cycle
Igneous, Metamorphic, Sedimentary --> Melt turn to magma I, M, S --> Weathering and erosion --> turn to sediment Sediment --> Layers and compresses --> Sedimentary I, M, S--> get smooshed and cooked --> metamorphic
500
How do tectonic plates move?
Convection currents under the crust's surface (located in the mantle) cause the plates to move.
500
What is the difference between weathering and erosion?
Weathering is the process by which rocks are broken down. Erosion is the MOVEMENT of sediments or bits of rock from one location to the other.
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