Time For Kids: Butterflies! (Time for Kids: Science Scoops: Level 3)
Butterflies
There are 20,000 different kinds of butterflies in the world. Many have brightly colored wings. But butterflies don't start life as beauties. Every butterfly begins as a tiny egg that hatches into a caterpillar. Then an amazing change takes place. The caterpillar turns into a fluttering butterfly!