Physics 125A Study Guide - Quiz Guide: Magma Chamber, Mantle Convection, Sedimentary Rock
Document Summary
Solid seeds of rock and metal grow by accretion into terrestrial planets we see today. More solid material is available because of the lower environmental temperature. Bigger ice-rich planetesimals are able to grow large enough to accrete h and he gas. Main differences between terrestrial planets: crater impacts (moon, volcanism (earth and venus, tectonic activity (earth) Magnetic field (earth = strong, others = weak, venus = weird: atmosphere/atmospheric composition (earth, venus (dense), mars (thin, co2), erosion (earth, mars, presence/absence of liquid water, soil composition waves bend differently at each different s=density. Liquid because: pitch drop experiment, university of queensland. (ow do we know what"s in the earth"s core: longest running experiment to this day, since 1930, 8 drops have supposedly fallen, scientific laughing stock, big planets cool slower and stay geologically active for longer. Lithosphere: crust + upper mantle, moon has a thick lithosphere, mars has a thick lithosphere, earth has a thin lithosphere, venus and earth have similar lithospheres.
