Geologic Timeline Reflection
In this project, we created a timeline of Earth's history, which is broken down into eras, periods, and epochs. One of the major events that happened was the formation of our planet. Occurring 4.5 billion years ago, massive rocks collided and used the power of gravity to pull other rocks within it. Without this huge collision, we wouldn't be standing here on earth today! Another major event would be the when oxygen became more abundant 2.4 billion years ago, creating breathable air for us.There is a hypothesis about how the first oxygen caused the entire planet to freeze, this event would be called a "Snowball Earth". Lastly, the most distinctive and notable event would be the dinosaur extinction 65 million years ago. There are many theories as to why the dinosaurs vanished. The most common explanation would be the asteroid hitting the Earth and vaporizing. It killed off about 80% of species, and the remaining would evolve into the feathery, flying animals you see t...