The Sun is the center of our solar system and essential to our existence. Compared to other stars, the Sun is rather ordinary—it is an average size star and just one of billions in the galaxy. However, compared to the planets, the Sun is massive—it contains about 99 percent of the mass of the entire solar system. The Sun's gravity holds the solar system together, and its energy warms our planet and provides the fuel for life.
Video: Characteristics of the Sun
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Watch this video about the Sun.
When you're done, think about how would you describe the size of the Sun compared to Earth.
Then write your answer in the notes box below.