They do not have evidence. In fact most pf things are not even true. The only thing they say they did was put a stick on the ground and with a shockwave they knew what was inside the earth. My opinion is that the core is not what scientists say it is. Due to the fact that we know more about the moon than our own planet.
Seismic waves travel faster when they travel through the core
inner
Scientists can never be sure of the exact temperatures at the center of the Earth, because we can not directly travel to the center of the Earth. Some scientists believe it is around 12,500 degrees Fahrenheit.
While S waves (shear waves) can travel through earth's solid inner core, they cannot travel through earth's liquid outer core, which surrounds the inner core.So, unless the S waves originated inside the inner core (which seems unlikely) there are no S waves traveling through earth's inner core.
Earth is an inner planet. The inner planets are Mercury, Venus, Earth, and Mars. The outer planets are Jupiter, Saturn, Uranus, and Neptune. The inner planets are warmer and have solid, rocky cores. The outer planets are much cooler, bigger and are mostly, if not entirely, gas.
There is the mantle, inner mantle, crust, inner and outter, and also there is a inner and outter core.
Seismic waves travel faster when they travel through the core
Scientists use the difference in density between the inner and outer core as evidence that the inner core is solid. This was proven using seismic waves traveling through the earth.
Seismic waves travel faster when they travel through the core
the earth quakes and volcanoes have helped in the study of the inner parts of the earth
Meteorites
iron
The inner core.
Waves traveling through the inner core go faster than those through the outer core.
They are classified on their composition (crust, mantle, outer and inner core) and on their mechanical properties (lithosphere, asthenosphere, mesosphere, outer and inner core).
"Scientists think that about 4.6 billion years ago, Earth formed as bits of material collided and stuck together" so over the next couple of years the earth formed the inner core, outer core, mantle, crust, lithosphere, and the asthensphere.
The core is a dense chunck of metal that influence the earths magnetic field.
In general the inner part of the core of something. The core of the Earth is made mostly of iron and some nickel. The outer part of the core is liquid, the inner core is under such high pressure that it is solid.