From Caterpillar to Butterfly (Let's-Read-and-Find-Out Science, Stage 1)

A caterpillar comes to school in a jar. The class watches the caterpillar each day as it grows and changes. Soon, it disappears into a hard shell called a chrysalis. Then the chrysalis breaks, and a beautiful butterfly flies out of the jar! This is a perfect beginner's guide to the mystery of metamorphosis.

Outstanding Science Trade Books for Children 1997 (NSTA/CBC)