★ “Adler shows his customary skill for explicating mathematical concepts in this smart exploration of flotation and density.”
—Publishers Weekly (starred review)

★”It’s rare to find a picture book that uses simple, hands-on activities so successfully, leading young children to a fuller understanding of a scientific concept.”
—Booklist (starred review)

“This title supports the Common Core State Standards that focus on measurement skills, interpretation of data, and incorporation of key ideas and details in the text. Recommended for math collections in public and school libraries and classroom shelves.”
—School Library Journal