Today, we went to the Museum Of Natural History. In the book, I learned that the universe was born about 15 billion years ago. Also, about 4.6 billion years ago, the earth was formed. A long time ago, the continents were connected. It was called Pangaea. In space, there are 9 planets, which include Mars, Mercury, Venus, Earth, Jupiter, Saturn, Uranus, and Neptune. The rotation of the earth takes 1 day, and the revolution of the earth takes 1 year. Today, the museum was very cool. I think today was a good day.

* Hi,

Great work! Be careful, though: the Sun is a star, not a planet! ^^