Grammar check: The question "Where on the body is the navel?" is grammatically correct. A slightly more natural wording is: "Where is the navel on the body?" or "Where on the body is the navel located?"
Answer for a 7-year-old:
- The navel is also called the belly button.
- It is on the front of your body, right in the middle of your tummy (the belly).
- If you put your finger in the center of your tummy, you will find it — usually about halfway between your chest and your hips.
- The navel is the little mark left where the umbilical cord was attached to you when you were a baby before you were born.
Short answer: The navel (belly button) is the little spot in the center of your belly, on the front of your body.