Okay kiddo, have you ever been to a really hot place and felt really sweaty and uncomfortable but then after a while, you start to feel better and more used to it? That's called acclimation!
Basically, when you go to a new place with different weather or climate, your body needs time to adjust. It needs to learn how to stay cool or warm depending on the temperature around you.
Just like when you start a new grade at school, at first everything is new and it feels a little hard, but after a few weeks, you get used to it and it becomes easier. The same thing happens with acclimation, your body needs time to adjust and get used to the new environment.
It's important to acclimate properly so that you can stay healthy and safe in places with extreme weather conditions. For example, if you were to travel to a really cold place without acclimating, you could get really sick and even get frostbite!
So remember, acclimation is when your body learns to adjust to a new environment and it's important to take your time and do it properly so you can stay healthy and safe.