This book was published 2001 by Econo-Clad Books, Div. of American Cos. , Inc. .

True Kelley has illustrated many favorite books for children in her fun-filled watercolor style, including several in the Let's-Read-and-Find-Out Science series. She and the author previously collaborated on What Makes a Magnet? and What the Moon is Like? True Kelley lives in Warner, New Hampshire.