What are foams?

Foams are like bubbles that stick together and don’t pop right away.

Imagine you're playing with a bubble wand in the bathtub, every time you blow, you get a bubble, which is like a tiny ball of air wrapped in water. Now imagine you blow so many bubbles that they all clump together, making a big, wobbly mess. That’s a foam! It’s like when you shake up a bottle of soda and it fizzes up, those fizzy bits are bubbles too.

Foams have two main parts:

• Air, which is inside the bubbles
• Liquid, which wraps around them like a skin

The more bubbles there are, the fluffier and lighter the foam feels, just like how your pillow feels when it’s full of soft air pockets!

When you pour a drink with foam on top, like coffee or beer, the foam is what makes it look so pretty and gives it that nice, smooth taste. So next time you see a bubbly drink or feel something fluffy in your hands, you’ll know, foam is at work!