Okay kiddo, so a fuze is a little thing that helps explosives go BOOM! When we want to make something explode, like fireworks, we need to light a fuse. But if we want to make a bigger explosion, we use a fuze instead of a fuse.
A fuze is like a tiny computer that controls when and how the explosive goes off. It can be programmed to go off at a certain time, or when it senses something, like movement or heat.
Some fuzes are really simple and just have a timer that counts down before setting off the explosion. Others are more advanced and can even tell the difference between a friendly vehicle and an enemy one before deciding whether to explode.
So, to sum it up, a fuze is a little machine that helps explosives go boom at the right time and place. But remember, we only use explosives for very special occasions and always handle them very carefully with an adult's help.