On October 26th, our class went to The Museum of Natural History. We went to the Hall of Meteorites, the Big Bang movie, and an astronomy movie. In the Hall of Meteorites, we learned what a meteorite is, and what a chrondule is. A meteorite is the remains of a meteor, and chrondules are pieces of dust formed together into a crystal. A chrondule tells us how old the solar system is. We also learned that a shooting star is actually tiny grains of dust that burn up in Earth's atmosphere. In the Big Bang movie, we learned what life was like before the Big Bang. One second before the Big Bang, everything was very hot and compact. The universe now is much bigger than the universe one hour after the Big Bang. The movie was very interesting although I still wonder how long the Big Bang actually was. After The Big Bang movie we went to the bottom floor of the Rose Center where I learned some new things about Mercury. I learned that Mercury is only 40% larger than the moon and that Mercury's surface reaches 470 degrees Celsius during the day, and is minus 180 degrees Celsius at night. I still wonder who discovered my body since the exact person isn't clear. After that, we went to see the astronomy movie. The movie was mostly about what the stars and planets were, and just the general layout of space.
