You don’t have to search far to find amazing Mystery Sounds. If you listen, you can find them in every room of your house. Today’s episode is chock full of these audible wonders. They are cotton candy for the ears! They are the notes to make your tympanic membrane sing!

It’s time for the Mystery Sound Extravaganza! An episode made up of nothing but Mystery Sounds, most of them recorded by our amazing listeners.Plus, today&#39;s Moment of Um answers this stumper: when your eyes are closed, are your pupils big or small?

Today’s episode is sponsored by KiwiCo (<a href="https://www.kiwico.com/mlp/brainson?utm_source=Brains_On_Podcast&utm_medium=PODCAST&utm_term=Science_Kids" title="kiwico.com/brainson">kiwico.com/brainson</a>)

Thinking ink: The scoop on this colorful stuff!

Brains On!® is a science podcast for curious kids and adults from American Public Media. Each week, a different kid co-host joins Molly Bloom to find answers to fascinating questions about the world sent in by listeners. Like, do dogs know they’re dogs? Or, why do feet stink? Plus, we have mystery sounds for you to guess, songs for you to dance to, and lots of facts -- all checked by experts.