|Sid the Science Kid|
|"I Have Muscles Where?"|
|Air Date||May 5, 2009|
|Previous Episode||Special Mom Day Meal|
|Next episode||Sid's Amazing Lungs|
I Have Muscles Where? is the thirty-second episode of the television series Sid the Science Kid.
When Sid's Dad tells him a really funny joke, Sid laughs so hard that his face hurts. Sid wonders why his face would hurt if the joke was funny? When Sid and his friends investigate at school, they learn that they have muscles all over their bodies, even in their faces!
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