Layers of the Earth
Where is the Crust the thickest?
under the continents
What are seismic waves?
waves of energy used to sense the earths insides
How thick is the Outer Core?
1,400 miles
What is the temperature of the Mantle?
1,600 degrees F at the top, 7,900 degrees F at the bottom
How thick is the Mantle?
1,800 miles
What is the temperature of the Inner Core?
13,000 degrees F
How hot is the Inner Core?
13,000 degrees Farenheit
What is the temperature of the Asthenosphere?
2,372 degrees F
How thick is the Crust?
5 miles deep under ocean, 25 miles deep under continents
What is the temperature range of the Outer Core?
7,900 degrees F (outer) to 11,000 degrees F (inner)
How thick is the Inner Core?
780 miles
What is the temperature range of the Crust?
Air temp at top to 1,600 degrees F in deepest parts
What is the temperature range of the Lithosphere?
Air temp at top, 2,336 at top of Asthenosphere
What part of the Earths layers is involved in tectonic plate movement?
Asthenosphere
What are the layers of the earth?
Crust, Lithosphere, Asthenosphere, Mantle, Outer Core, Inner Core
What causes seismic waves?
Earthquakes or man-made explosions
What causes the convection currents in the Mantle?
Extreme heat
How is the Inner Core kept in solid state?
From extreme pressure from other layers
What is the Inner Core made of?
Iron and Nickel
What is the consistency of the Asthenosphere?
Like Silly Putty. Plastic Like.
What layer of the Earth is found in both the Mantle & the Crust?
Lithosphere
Where is the Lithosphere located?
Lower level of the Crust, upper layer of Mantle
Which part of the Earths layers creates convection currents?
Mantle.
What is the Outer Core made of?
Mostly Iron - very heavy metals
Are any of the layers of the Earth gas?
No
What part of the earths layers are liquid?
Only the Outer Core
What is the Crust made of?
Rock and loose material
Is the Crust a solid, liquid or gas?
Solid
Is the Lithosphere a solid, liquid or gas?
Solid
What does Density mean?
The degree of compactness. How thick a substances is
What are the Tectonic Plates?
The two sub-layers of the earth's crust (lithosphere) that move, float, and sometimes fracture and whose interaction causes continental drift, earthquakes, volcanoes, mountains, and oceanic trenches.
Are seismic waves straight or do they bend?
They bend and change shapes as the density of the rock changes.
Where is the Asthenosphere located?
Upper part of Mantle
Are any layers of the Earth liquid?
Yes - Outer Core
Is the Asthenosphere liquid, solid or gas?
solid
