You can either talk about police, education (school), highway building, or how taxes are used to pay for all those services. And then explain how whatever service you chose affects your family. Like for example, highway building can cause you or your parents to have to leave earlier because of detours. Or with taxes you can talk about how it puts your family on a budget.
I know that some things that are in the naturalization process are:
Knowledge of the presidents, Knowledge of basic math/reading and writing.
The Constitution divides powers between the federal government's branches. The Constitution creates a structure that limits the powers of our government.
Nicholas Copernicus was a leader in the Scientific Revolution that published "On the Revolution of Heavenly Bodies" which concluded that the Earth revolves around the sun.