A ton is a big, heavy thing that we use to measure weight. Imagine you have a whole bunch of big bouncy balls- you know, the ones you love to play with? Well, if you have a ton of them, that means you have so many that they would be really difficult to lift or move all at once.
A ton is so heavy that we usually talk about it in terms of something else that's really heavy, like an elephant or a car. If you had a ton of elephants, you would have more than 10 elephants all piled on top of each other!
It's also important to remember that there are different types of tons- some are bigger than others. The one that we usually talk about is called a "short ton," which is equal to 2,000 pounds. That's about as heavy as a small car!
So remember, a ton is a really big, heavy thing that we use to measure weight. You need to have a whole bunch of something to have a ton of it, and it's way too heavy to lift or move around easily.