Layers
How many basic layers does Earth have?
4
What are the 2 types of crust?
Oceanic and Continental crust
Describe the motion of
1. Warm magma
2. Cool Magma
1. Rises
2. Sinks
How many layers is the core divided into?
2
What causes parts of the crust to move?
Convection currents in the mantle
Name the main layers of Earth
Crust, Mantle, Outer core, and Inner Core
The oceanic crust is thicker or thinner than the continental crust?
Thinner
Do the convection currents in the mantle flow in the Lithosphere or Aesthenosphere?
The Asthenosphere
What is the outer core made of?
Iron and nickel
What does the inner core do within the outer core
It rotates
What is the hottest layer of Earth?
Inner Core
True/False
Only the Continental Crust is a part of the lithosphere?
False
What is the rising of warm magma and sinking of cool magma?
Convection currents
What is the outer core responsible for?
The Earth's electromagnetic field
Describe the density:
1. Warm magma
2. Cool Magma
1. Less dense
2. More dense
The exact layer that is responsible for Earth's magnetism
Currents in the Outer Core
What TWO elements make up most of the crust?
Aluminum and Silicon
The mantle rocks can be both.....
Solid and molten rock (magma)
What is the inner core made of?
Primarily Iron and some nickel.
Give 2 of the 3 main characteristics of the inner core
Made of mostly Iron, the hottest layer, solid
The layer of Earth where magma is located
Mantle
What is the term for a characteristic of the mantle that says that it is bendable and will flow when heated
Plasticity
The mantle can be described as "plastic". What does this mean?
It is a solid with the ability bend and flow like a liquid.
Why are the elements iron and nickel most prevalent in the core?
They are the most dense of the common elements on Earth
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