Where does your poop go when you flush the toilet? That's a good question! Find out the answer at Australia's Curious Kids site.
Take an interactive tour of a sewage treatment facility. You'll see both animations and real photos of each step in the process of treating sewage.
Wonderopolis is a great site that answers kids' questions. Take a look at this page featuring “How does a wastewater treatment plant work?” Try the quiz too.
If you don't live in a city, sewage may be handled by a septic system. Check out this interactive presentation to see how septic systems work.
Why does sewage matter anyway? The United States Geological Survey explains why wastewater treatment is so important and invites you to explore how physics, biology and technology combine in a process that allows wastewater to return to the environment.