Ozone cracking

Ozone cracking happens to rubber or plastic things, like tires or pipes, when they get exposed to air that has ozone in it. Ozone is a chemical that's in our air, and it can make things like tires get cracks. Imagine you have a toy car and you play with it so much that it has some little cracks in it. Those cracks get bigger over time, right? That's kind of what happens with ozone cracking. The ozone gas enters the little cracks in the rubber or plastic and reacts with it. This reaction pulls the molecules apart and makes the material weaker, which can lead to even more cracks. It's like your toy car getting even more cracked and maybe even breaking apart. That's why people who make things out of rubber or plastic have to be careful and design them to resist ozone cracking, so they'll last a long time without breaking.