Here are three simple ways to say it for a 6-year-old:
- Your nose and ears are linked, so when your nose is stuffy you might not hear as well.
- If your nose is blocked, your ears can sound muffled because they are connected.
- When your nose is plugged, sounds can seem quieter since the nose and ears share a tiny tube.
Why this happens (in one short sentence): the nose and ears are joined by a little tube, so when the nose is clogged the sounds don’t travel as well and hearing can seem worse.