Sid the Science Kid
Sid is an "inquisitive youngster" who uses comedy to tackle questions kids have about basic scientific principles and why things work the way they do.
37. I Have Muscles Where?
0.0May 5, 2009 · 30 min
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!