This file contains the following topics: Solar system formation, accretion, and the early thermal state of the earth, rotation and angular momentum, the sun, planetary formation, early thermal state of the earth, radioactive decay, radiometric dating, radioactivity as a heat source, meteorites and the bulk composition of the earth, chondrites, secondary processing, achondrites, irons and stony-irons, the terrestrial planets, one-dimensional earth’s structure, and lateral heterogeneity in the mantle.