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Our solar system Makeria Bonds Fairview Aerospace and Science Magnet School Our solar system is made up of the sun and eight planets a planet is a large ball made of rock or gas. The Sun • The sun is a star. • It is a ball of hot gas. • It gives off light and heat. • It looks different from other stars. • The sun is the star closest to Earth. Mercury Mercury is the closest planet to the sun It is also the smallest It has mountains and craters. Craters are holes in the ground what were made when space rocks crashed into it. Venus It is the hottest planet. It is hot enough to melt a rocket ship. Venus is about the same size as Earth. Earth Earth is our home. It is the only planet with oceans. Earth is covered mostly with water. It is called Blue Planet. Mars Mars is called the Red Planet. It has mountains, volcanoes, and canyons. A canyon is a deep, narrow valley with steep sides. Jupiter The largest planet Thick gas Very strong winds blow on this planet. Saturn The second-largest planet. Has rings around it. The rings are made of rock, dust, and ice. Uranus The first planet discovered using a telescope. It is cold and windy. Neptune The coldest planet Farthest from the sun The planet is made of gases.