An Island Grows by Lola Shaefer and illustrated by Cathie Felstead (Greenwillow, 2006) is a nonfiction picture book about a volcano forming in the ocean, written as a story about a single, fictional island. With less than 10 words per page and a natural rhyme, this book tells the story of magma pushing through the rocks on the bottom of the ocean and the island that then forms.
An Island Grows includes mentions of flora and fauna entering the island, as well as settlers, and indicates that another island is forming nearby. I highly recommend An Island Grows as a gentle introduction to the changing face of earth, specifically teaching about volcanoes.