Archeology is the study of the past by looking for things left by people who lived long ago. These things are called “remains” or “artifacts”. They can include old bones, coins, tools, and buildings.
(Source: Elliott Simpson via Wikimedia Commons.)
Archeologists are people who study archaeology. These scientists study human history and try to understand how people lived in the past. They try to learn about groups of people who lived long ago by studying the things these people left behind. Because archeologists study ancient (very old) history, they often have to dig deep in the ground to find the things they are interested in.