 This is a football field. Not that football. This football. What are all these lines? See these little ones? That's hard to see. Hold on. These ones. These are called yard lines. Each one is a yard apart. There's a hundred of them. I count it. It's hard to count to a hundred that quick, so they use bigger lines. That's five yards, and that's ten yards. But you probably already knew that because of the big ten right there. The numbers go up to fifty. That's the fifty yard line. It's special because it's in the middle. Both sides are the same. If you watch a football game in a house of mirrors, it would be exactly the same. Maybe a little wavy. The numbers go down to the zero yard line. Only there is no zero yard line. Well, there is, but we call it the goal line. Past the goal line in the red area here. That's the end zone. It's blue now. Sometimes the whole field is blue. End zones are ten yards deep, so the whole field is a hundred and twenty yards. See these lines over here on the side? Those are the sidelines. Sometimes they're thick, so they're easier to see. If you step on a sideline during the game, you're considered out of bounds. Those points are the closest end zones, so you can tell which side you're on, even if you can't see the whole field. Oh, those things? Those are goal posts. There's one at each end. You try to kick the ball through them. So what have we learned? A hundred yard lines between each end zone. Five yards between each big line. Ten yards between each number. A fifty yard line in the middle. Behind the end zones are the goal posts. And that's a football field.