A long time ago, there was a huge explosion called the Big Bang. As a result, meteors, rocks, and clouds came together and formed the planets. At first, Earth was full of magma. Then, it rained a lot so the oceans and plants were created.

  Earth's history is divided into four eras. In the Precambrian Era, there was only cynobacteria, the first creatures ever. Reptiles appeared in the Paleozoic Era and Dinosaurs lived in the Mesozoic Era. The last one is called the Cenozoic Era. This is the time when humans appeared.

  The museum insisted that fish evolved into reptiles and chimpanzees evolved into humans. However, I do not think that this is true. If our ancestors are chimpanzees, we, humans also have to evolve, but even though the history of human is very long, there weren't any significant changes.

  There were some parts that I couldn't understand, but the scientific facts that I learned at the museum were very interesting and helpful.

Excellent information.  It is true that we called it "the theory of evolution" or "the theory of human evolution" because they are just theories, they are not proven as facts.  Human history actually is very short compared to how long the earth has existed or how long life has existed, and actually fossil evidence shows many bones that belonged to human-like animals that were similar to us-but not as smart :)