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ISEE Lower Level
Reading Comprehension

Understanding the Solar System's Dynamics

Hard Supporting Details Understanding Evidence

The solar system is a fascinating realm that consists of the Sun and the celestial objects that orbit it. Among these objects is a variety of planets, moons, asteroids, and comets. The four inner planets, Mercury, Venus, Earth, and Mars, are rocky and smaller than the outer planets. In contrast, the outer planets, Jupiter, Saturn, Uranus, and Neptune, are much larger and are mostly composed of gases. Each planet has unique characteristics that make them suitable for different types of exploration.

For example, Mars has been a focus of many missions due to its potential to harbor life and its similarities to Earth, whereas Jupiter's massive size and strong gravity make it a subject of interest for studying the formation of the solar system. Additionally, the orbits of these celestial bodies follow specific patterns. The paths of the planets are elliptical and are influenced by gravitational forces. Understanding these orbits helps scientists predict astronomical events.

This knowledge is crucial, not only for astronomers but also for space agencies planning future explorations.

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