Why does Crayola air dry clay crack and how can I prevent it from happening?

Crayola air dry clay can crack due to a few reasons, such as drying too quickly or unevenly, or not being properly kneaded before use. To prevent cracking, make sure to knead the clay thoroughly, keep it covered when not in use, and allow it to dry slowly and evenly. Adding a bit of water while working with the clay can also help prevent cracking.