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Sun

Read the story and answer the questions to test your comprehension.

The sun is the star at the very center of our solar system, and it makes up 99.8% of the whole thing! The sun is called a yellow dwarf star and scientist think it is 4.57 billion years old.

  1. 1. How old is the Sun?
    1. a. 4.44 billion years old
    2. b. 4.57 million years old
    3. c. 4.57 billion years old
  2. 2. What kind of star is the Sun?
    1. a. Gas giant
    2. b. Red giant
    3. c. Yellow dwarf
  3. 3. How much of our Solar System is made up of the Sun?
    1. a. 99.8%
    2. b. 99.7%
    3. c. 85%