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Terrestrial Planets | Jovian Planets | Dwarf Planets | Planet Density | Planet Rotation. The first four planets are the terrestrial planets. A terrestrial planet has a metallic core (usually iron) and a rocky surface. The atmosphere of each terrestrial planets varies. Mercury has almost no atmosphere, while the surface of Venus has an atmospheric pressure 90 times that of the Earth! NO MOVIE.
Terrestrial Planet: Also known as a rocky planet, its made from silicate rocks or materials. There are four Terrestrial Planets in The Solar System. Jovian Planet: Also know â¦ n as a gas giant, they have high levels of methane and made composed of gases, some with huge storms such as the Red Spot on Jupiter.ovian planets are primarily gaseous. Terrestrial planets, due to a higher density, are fou â¦ nd on the inner orbits of the solar system. Pluto is actually neither, as its composition is mostly icy rather than metallic elements like terrestrial planets.