What are latitude and longitude?
Earth's Secret Grid
What are latitude and longitude?
You know how sometimes you need to meet a friend, and "by the park" isn't specific enough because there are three parks and your friend picks the wrong one? The whole Earth has that problem. Seven continents, five oceans, millions of cities — how do you tell someone EXACTLY where you are?
Hundreds of years ago, sailors invented an invisible grid that wraps around the whole planet. It's made of imaginary lines — they're not painted on the ground or floating in the sky, but they're as useful as if they were real. These lines let you pinpoint any spot on Earth with just two numbers.
