Bubbles are everywhere. You just need to know where to look. There’s the obvious place — the soap bubbles in your bath. There are also bubbles in your body. They’re responsible for your cracking knuckles. The gems in a ring might have bubbles, called inclusions. Going farther out, humpback whales use bubbles to hunt. And scientists figured out a way to heal wounds with bubbles.

But the best bubbles, at least on a sunny summer day, are probably the bubbles you blow in your own backyard.

Source: Let’s learn about bubbles | Science News for Students