The Museum of Natural History

             Today I went to the National museum of natural history. The universe was born 15billion years ago. It is created by the Big Bang. 4.6 billion years ago, Earth was born. Earth was first a magma ball. It was cooled for 3billion years and rained which made the sea. Outer space has 8 planets. It is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Each symbolizes 8 Greek gods. Hermes, Aphrodite, Ares, Zeus, Coronus, Gaea, and Poseidon. Earth has 4 eras. The Precambrian era, there were Cyano bacteria. It made oxygen by doing photosynthesis. In the Paleozoic era, there were reptile, fish, and plants. In the Mesozoic era, there were dinosaurs. Dinos have 2 different kinds. 1 is herbivores, plant eating. 2^nd is carnivore, meat eating dinos. In the Cenozoic era, human was born. First was Astrapitacus, second is Homo Haines, third is Homo sapiens, used fire and was the smartest, forth is now. I want to visit the museum again.