Building a simple AM radio might be an interesting project. There might be a more kid-friendly/kit version of something like this: https://m.youtube.com/watch

Building a simple AM radio might be an interesting project. There might be a more kid-friendly/kit version of something like this: https://m.youtube.com/watch?v=_AI2Jixj5Bs https://m.youtube.com/watch?v=_AI2Jixj5Bs