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.

Dont know the composition) : sorry but

the more you go into the earth the hotter it will get and the more closer u get to the core the pressure will rise tremendously