Cloudette by Tom Lichtenheld

Cloudette is a small cloud that wants to do big things, but she can’t figure out what to do. One day a storm blows her out of her neighborhood and she meets some friends who could use her help: frogs in a virtually dry pond. She fills herself with water and releases it into the pond. The frogs and all of her cloud friends are happy with her accomplishment, and Cloudette begins to consider other ways she might make an impact on the world.

On the copyright page the author/illustrator says the water used for the watercolor in the book was collected in a bucket during a rainstorm, this detail and sections throughout the book will make great springboards for discussions about clouds and their purpose.