What is adhesion?

Adhesion is when two things stick together because they are close friends at a tiny level.

Imagine you have two pieces of tape, and you press them against each other. They don’t want to be apart, that’s adhesion in action!

Think about glue. When you put glue on paper and stick it to another piece of paper, the glue makes them hold together. That's because the tiny parts of the glue are hugging the tiny parts of the paper.

Adhesion is like hand-holding between tiny parts, making two things stay together even when they’re not glued or taped.

When you walk on a wet floor and slip, it’s because adhesion isn’t strong enough. But if you wear shoes with sticky soles, they stick better, that's more adhesion!

So next time you see something sticking together, remember: it's just tiny parts being really friendly!