Pop! A Book About Bubbles

What are bubbles made of? Why are they always round? Read and find out about the science behind soap bubbles, and learn why bubbles always go POP!

POP! explains how trapping air inside soapy liquid creates bubbles—and why bubbles are always round. Blowing bubbles is a staple activity of preschool and kindergarten, and here they are introduced to a bit of science to go with this popular activity.