Sid declares that it's a special Mom Day, so he makes Mom French toast for breakfast. When Sid smells the French toast and his stomach growls, he wonders if his stomach is trying to talk to him. When Sid and his friends investigate at school, they discover that the stomach makes noise when it's getting ready for digestion. #PBSKids #SidTheScienceKid #MothersDay Watch and play more videos and games at pbskids.org or download the *FREE* PBS KIDS Video and Games app at pbskids.org/apps/