What is it like in earth’s inner and outer cores? describe the temperature, pressure, and composition.

Basic Geology/Outer Core. The outer core of the Earth is a liquid layer about 2,260 km thick composed of iron and nickel which lies above the Earth's solid inner core and below its mantle. ... The temperature of the outer core ranges from 4400 °C (7952 °F) in the outer regions to 6100 °C (11012 °F)near the inner core.

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.