COOL SCIENCE Soap bubbles are hollow balls of soapy water filled with air. A thin wall of soap pulls in as the air inside pushes out. The wall becomes thinner until—POP!—the bubble bursts.

If you want to try this, Do a web search on "frozen bubbles," and you will find lots of ways to learn how to do this fun experiment.

Beautiful, buoyant, beguiling bubbles are coming back to the New York Hall of Science (NYSCI) in Queens as of Friday, November 17. The beloved bubbles exhibit, which has been closed for five years ...