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Touring our Solar System. An Overview of our Planets. Terrestrial planets are small and rocky Mercury, Venus, Earth, and Mars Jovian planets are gas giants Jupiter, Saturn, Uranus, Neptune. An Overview of our Planets.
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An Overview of our Planets • Terrestrial planets are small and rocky • Mercury, Venus, Earth, and Mars • Jovian planets are gas giants • Jupiter, Saturn, Uranus, Neptune
An Overview of our Planets • Size is the most obvious difference between terrestrial and Jovian planets
An Overview of our Planets • Density, chemical makeup, and rate of rotation are other ways in which the two groups of planets differ
The Solar System: Atmosphere • The Jovian planets have very thick atmospheres of hydrogen, helium, methane, and ammonia • The terrestrial planets, including Earth, have meager atmospheres at best
Formation of the Solar System • According to the nebular theory, the sun and planets formed from a rotating disk of dust and gases • A nebula is a cloud of gas and/or dust in space
Venn Diagram Jovian Planets Terrestrial Planets