Crust
What layer does the crust float on?
The mantle.
Which number layer of the Earth is the mantle?
The third layer
What is the outer layer made of ?
LIQUID metals: iron and nickel.
Where is this located in the Earth?
The first level. Center of the Earth
What layer acts as a slow moving goo?
The mantle
What are the two types of crust?
Oceanic crust, and Continental crust.
What percentage of the Earth is the mantle?
82%
What layer of earth is the outer core ?
The 2nd layer.
What is the inner core made of?
SOLID iron and nickel
What is the outermost layer we live on?
The crust
These large pieces of Earth’s crust move slowly over time.
Tectonic plates
What is the mantle made up of?
Heavy metals
What is the Outer Core on top of?
The inner core
True or False? The inner core is hotter than the sun.
True!
What is the hottest layer?
The inner core
How many km deep is the Earth's crust?
50 km.
What occurs in the mantle?
Convection currents
How does the outer core produce the electromagnetic field?
The fast flowing liquid creates the energy.
What temperature is the inner core?
10,000 degrees F
What happens when plates spread apart?
New crust forms.
When tectonic plates slide against each other, what does this create?
Earthquakes
What is the affect of convection currents?
It drives the plate tectonics in the crust.
What does the electromagnetic field do for the Earth.
It protects the Earth from harmful sun energy.
What type of shield does the inner core stabilize?
Electromagnetic Shield
Name the layers of the Earth from the top to bottom
Crust, mantle, outer core, inner core