Science Common Sense

284 - What is a geologic timeline?

A geologic timeline is like a huge calendar that shows the history of our Earth, from when it was formed to the present day. It's divided into big chunks called eons, eras, periods, and epochs.

Imagine a long line with marks on it. Each mark represents a major event in Earth's history, like the formation of oceans, the rise of dinosaurs, or the development of humans.

The geologic timeline helps us understand how our Earth has changed over millions and millions of years, and how life on our planet has evolved over time.