This is about the difference between sounds inside and outside. Aslo the difference things that happed inside vs outside.

Sometimes it rains outside and it is a time for indoor activity. Each page shows first, the development of a spring storm, as well as what Molly does inside. For that, it is very predictable to the young reader even though it doesn't rhyme. Because it doesn't rhyme, it is a little tricky so I level it at 1.5 ( )