At1, you can't see any2in the sky. But3a clear day, there is only one thing in the sky. It is the4.5will you know the sun? It goes up every morning to begin a new day. It 6 different kinds of colors to us when it goes7in the evening. Sometimes you can say the sun8a big ball when you look at it. The sun is very9  . It looks small because it is very10from us.