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Today I went to a museum of natural history. I learned about the Earth's Birth,the solar system and dinosaurs lots of things. About the Earth's Birth is I learned that the universe was born about 15 billion years ago, during the Big Bang. About 4.6 billion years ago, the planet we live on, Earth was formed. About the solar system I learned that outer space has numerous stars. There are 9 planets starting with the planet closet to the sun, Mercury,Venus,Earth,Mars,Jupiter,Saturn,Uranus and Neptune. This thing I learned about solar system. And last, about dinosaurs in Troodon, I learned Troodon weighed about 22.7 kg, and the weigh of their brain was between 37~45 kg. I liked dinosaurs in what I learned today. And I interested Troodon best. |