Final answer:
The Nebular Hypothesis explains the formation of our solar system. The inner planets, which include Mercury, Venus, Earth, and Mars, are smaller and made of rock and metal. The outer planets, including Jupiter, Saturn, Uranus, and Neptune, are larger and composed of gas and ice.
Step-by-step explanation:
The theory that describes the formation of our solar system is the Nebular Hypothesis. According to this theory, the solar system formed from a giant cloud of gas and dust called a nebula. Over time, gravitational forces caused the nebula to collapse and spin, forming a rotating disk of material. The center of the disk became the Sun, while the remaining material condensed to form planets, moons, and other celestial bodies.
The inner planets of our solar system are Mercury, Venus, Earth, and Mars. These planets are relatively small and made primarily of rock and metal. They are also closer to the Sun and have shorter orbital periods. On the other hand, the outer planets are Jupiter, Saturn, Uranus, and Neptune. These planets are much larger and made mostly of gas and ice. They are also located farther from the Sun and have longer orbital periods.
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