![]() The orbital distance is the average distance from the planet to the Sun as it circles the Sun. Planets are approximately spherical, and the equatorial radius is often used as a measure of their size. Planets are not self-luminous-they do not emit light like the stars-but they can be seen in the sky because they reflect light emitted by other celestial objects. Dwarf planets, like Pluto, fulfill the first two criteria, but not the last. Eight objects in the solar system qualify as planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. The latter means that there are no objects comparable in size in the vicinity of its orbit, other than the planet's moons. A celestial body is considered a planet in the solar system if it orbits the Sun, if it is heavy enough for gravity to squeeze it into a spherical shape, and if it has "cleared the neighborhood" around its orbit. The solar system is the system of objects that orbit the Sun directly (e.g. Time, space, and energy phenomena can be observed at various scales using models to study systems that are too large or too small. ![]() The solar system consists of the sun and a collection of objects, including planets, their moons, and asteroids that are held in orbit around the sun by its gravitational pull on them. Use mathematical representations to describe and/or support scientific conclusions and design solutions. Using Mathematics and Computational Thinking. This lesson focuses on these aspects of NGSS Three Dimensional Learning: Science & Engineering Practicesĭevelop a model to predict and/or describe phenomena. This lesson helps students prepare for these Next Generation Science Standards Performance Expectations:Īnalyze and interpret data to determine scale properties of objects in the solar system. Learn facts about the solar system, such as the number of planets in the solar system, the small size of the planets compared to the size of the solar system, that all planets of the solar system orbit the Sun, etc.Calculate the scale factor when the actual measurements of the solar system and the model are given.Calculate the size of a model planet and its distance to the Sun when the actual measurements of the planet and the scale factor is given.Seeing the relative size of the eight planets and their distance from the Sun displayed before them will allow your students to grasp the structure and vastness of the solar system. They will do the calculations, make model planets, and find out where to place them so their model reflects reality. This hands-on science lesson will help your students get a more accurate view of the solar system by making a scale model. ![]()
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