Crust
What layer does the crust float on?
The mantle.
Which number layer of the Earth is the mantle?
What is the third layer?
What is the outer layer made of ?
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.
What are tectonic plates?
What is the mantle made up of?
Heavy metals
What is the Outer Core below?
The mantle
True or False? The inner core is hotter than the sun.
True!
What is the most dense layer?
The inner core.
How many km deep is the Earth's crust?
What is 50 km.
What occurs in the mantle?
Convection currents
How thick is the outer core?
It is 2300 km thick
What temperature is the inner core?
10,000 degrees F
What do sliding plates cause?
Earth quakes
What is the process of a tectonic plate moving under another, often causing volcanoes?
Subduction.
What is the affect of convection currents?
It drives the plate tectonics in the crust.
What does the flow of liquid do?
Creates a shield protecting the Earth
What type of shield does the inner core stabilize?
Magnetic Shield
Name the layers of the Earth from the top to bottom
Crust, mantle, outer core, inner core