Today we went to 'Museum of Natural History'. My group started from the third floor. Third floor was about the Univers and the Solar System. Univers was born about 15 billion years ago, and our planet Earth was formed about 4.6 billion years ago. The Earth was formed by Big Bang. In our Solar System, there are 8 planets, closest to the Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. The planet Pluto was out of the Solar Syatem, because it was too small and from the other 8 planets it turns the other way. Earth takes 1 day to rotate, Earth takes 1 year to revolve around the Sun. We came down to second floor. It was about Dinosaurs and other Animals. There were big and small dinosaures. One of the dinosaurs Troodon, weighed about 22.7kg, and the brain weighed about 37~45g. This dinosaurses were smater than other dinosaurses. We saw the develoption of humans and whales. We also saw a lots of animals, bugs, and birds. We saw some sharks too. I think Museum of Natural History is very interesting and has fun things!!!