It’s been raining, so JoJo wants to get outside and splash in the puddles. Isaiah arrives for his play date with JoJo, but Isaiah wants to stay inside and read his science books. Gran Gran suggests they compromise, but what is a compromise? Gran Gran has a plan: they can use the puddles outside to do a science experiment inside. They use timers and the sun to track the edge of the puddle and find out how long it takes for a puddle to disappear.