Sharpening stone

So, imagine you have a crayon and you want it to be super sharp so you can color really well. But the crayon is kind of dull and not very pointy.

That's kind of like what happens with knives and other tools that have blades - they can get dull and not very good at cutting things anymore.

But just like you can sharpen a crayon, you can also sharpen knives and other blades with a special tool called a sharpening stone.

The sharpening stone is kind of like a very rough piece of rock. When you rub the blade back and forth against the stone, it scrapes off a tiny bit of the metal and makes the blade sharp again.

But you don't just rub the blade back and forth randomly - you have to use a special technique. You hold the blade at a certain angle and rub it against the stone at that angle. Then you switch to a different angle and do it again. And you keep doing this until the blade is sharp enough.

It takes a lot of practice to get good at sharpening blades with a sharpening stone, but it's a really useful skill to have!