Do you know those words or pictures you see scrolling across the bottom of the TV screen while you watch your favorite show or movie? That's called a news ticker.
It's like a long, skinny box that shows important updates, news or information that is happening right now.
It's a way for people to keep up with what's happening in the world without having to stop what they're doing to watch or read a news story.
It's kind of like the crawl on the bottom of a movie screen that tells you the name of the actor, the director and the writer.
The words or pictures scroll slowly across the screen and you can read them without having to stop what you're doing.
So, if you're watching TV and you see words scrolling across the bottom of the screen, you're looking at a news ticker!