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The Solar System. 3 rd Grade. The Solar system is the sun and the objects that orbit around it. The Sun is a star. The Sun is the center of the solar system. A planet is a large body of rock or gas that orbits the sky. The Solar System has nine planets.
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The Solar System 3rd Grade
The Solar system is the sun and the objects that orbit around it.
The Sun is a star. The Sun is the center of the solar system.
A planet is a large body of rock or gas that orbits the sky. • The Solar System has nine planets. • Earth is one of the nine planets.
The Inner Planets • The Inner planets are closest to the sun. -Mercury -Venus -Earth -Mars
The Inner Planets are the warmest planets and have rocky surfaces.
Earth • Earth is different from the other planets it has a watery surface. • Earth is the only planet with a lot of oxygen in the atmosphere. • Earth has plant and animal life.
Outer Planets • The outer planets are colder than the inner planets because they are farthest away from the sun. -Jupiter -Saturn -Uranus -Neptune -Pluto
Outer Planets are made mostly of frozen gases and have many moons.
Other objects in the solar system • Asteroids are chunks of rock or metal that orbit the sun. • Comets are large balls of ice and dust that orbit the sun.