ELI5: Explain Like I'm 5

Instant cold pack

An instant cold pack is something you can use to make a boo-boo feel better! You know how when you hurt yourself, your skin may start to look red and feel hot? Well, an instant cold pack can help make that feeling go away.

Inside an instant cold pack, there are two things that help make it work: chemicals and water. When you squeeze the cold pack, you break the seal that separates these two things. Once the water and chemicals mix, they start to make a really cool reaction happen.

This reaction is kind of like magic, and it makes the cold pack really cold! In fact, it can get so cold that it can make your skin almost feel like it's burning, but don't worry, it's not actually burning you. It's just helping to take the heat and pain away from your boo-boo.

So, when you get an ouchie, just grab an instant cold pack and squeeze it until the chemicals and water mix. Then, all you have to do is put the cold pack on your boo-boo and it will start to make you feel better in no time!