1. Planet Earth

2. Dusty Spiral Galaxy

3. Planetary Science Origin of Earth: Big Bang Relevance to Earth Sciences: Elemental Distribution

4. Big Bang

5. Birth of the Solar System

6. Planetary Science Formation of Planet from Dust and Gases: “Swirling Eddies” Accretion Melting Differentiation Relevance to Earth Sciences: Composition of Earth Density-mediated layering Earth’s Heat Engine

7. Planets and Satellites: How many Planets are there, and what is their order in terms of distance from the Sun? What is a Satellite? How many are there?

8. Solar System