A Wonderleaf question
Why does my stomach growl?
a real page from the book
Your stomach growls because the muscles in your digestive system keep squeezing even when there is not much food inside. Those squeezes move pockets of air and fluid through narrow spaces, and the jiggling air makes the rumbling sound you hear.
The growl can seem louder before a meal because an emptier belly leaves more open space for sound to echo. Hunger can also make the gut squeeze more strongly, as if it is tidying up and getting ready for the next snack.
Wonder words
- stomach
- intestines
- digestion
- vibration
Try it out
Listen before dinner, then again after eating, and compare how loud your belly sounds.
Read the whole picture book
Watercolour scenes, straight answers, about three minutes cover to cover.
Open the picture bookKeep wondering
- Why does hair grow?
- How do germs get inside the body?
- Why do we cry tears?
- Why do we sweat?
- Why do we have a belly button?
- Why do we get goosebumps?
One more wonder: Why is space so dark?
And the next question?
Ask anything — Wonderleaf writes and illustrates a picture book for it. That's the whole idea.
Ask your own questionThe next wonder, by email
A new question goes up every Sunday evening. We email it to you Monday morning, free to read that week.
One wonder a week, nothing else, ever. Unsubscribe in one click.