Metagenomics is a type of science that studies the genetic material that is found in different environments like in soil, on the ocean floor, and even inside our bodies! Scientists use metagenomics to try to figure out what kinds of bacteria, viruses, and other organisms live in these environments and what kinds of things they do. For example, when studying soil, metagenomics can help scientists figure out which bacteria or other organisms are good for helping plants grow and which ones are bad for them. Metagenomics is also used to study the microbes that live inside our bodies, which can help us understand how to prevent and treat certain diseases.