A butterfly has four changes in its life. First it is a little egg laid by the mother butterfly. After a while a caterpillar comes out of the egg. The caterpillar eats and grows until it is big. Then it makes a home called a chrysalis where it slowly changes. After a while a butterfly comes out and flies away! Focus Skills: R-controlled vowel (or ore ar er ur ir) Series editor and principal author of the Red Rocket Readers program, Pam Holden has more than 40 years' specialist experience and as a Reading Recovery teacher working with children struggling with literacy.