17. Core
Outer Core:
Composition: Iron and
Nickel, 10% sulfur and
oxygen
18. Core
Outer Core:
Density: 10g to 12g per
cm³
Temperature: 4000° to
5000° C
19. Core
Inner Core:
Solid
1230 km thick
About 6380 km beneath
Earth’s surface
20. Core
Inner Core:
Composition: Iron and
Nickel
Density: 15 g per cm³
Temperature: 5000° to
6000° C
21. Earth’s Layers
Scientistsuse indirect
methods to gain information
and knowledge of Earth’s
interior (example:
earthquakes).
22. Earth’s Layers
Seismic waves from
earthquakes travel at
different speeds depending
on the density and
composition of the ground
they move through.