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Quick Binder Check. Vocabulary. Nebular Theory The Solar System formed from a nebula. Recap. Nebula contracts due to gravity . Nebula begins to spin due to centripetal force and the center bulges. Gas and dust condensed to form planetesimals .
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Vocabulary Nebular Theory The Solar System formed from a nebula.
Recap • Nebula contracts due to gravity. • Nebula begins to spin due to centripetal forceand the center bulges. • Gas and dust condensed to form planetesimals. • Protoplanets formed from collidingplanetesimals. • Inner and Outer Planets form by differentiation.
Vocabulary Differentiation The sinking of denser elements towards the center of a planet.
Process of Differentiation During the early process of planet formation, while most of the material was still very hot: • heavier elements collected in the middle of the planets (the core of Earth) • lighter elements stayed closer to the surface(gas/atmosphere)