How Does a Caterpillar Become a Butterfly?: And Other Questons About.... Butterflies (Good Question!)

How does a caterpillar turn into a beautiful butterfly - and how much must it eat before it changes? What is a chrysalis? How does a new butterfly break out of its cocoon? Is it true that butterflies can taste with their feet? Budding scientists will delight in following this favorite creature's lifecycle and discovering the role it plays in nature.