Grid lines on maps and globes often use curving lines because the Earth is a sphere. A key is used to explain the meaning of each symbol on a map. They can stand for a physical feature or an artificial feature. Mapmakers use symbols to stand for features on Earth’s surface. Maps contain a lot of information in a relatively small amount of space. Maps often have scale bars that show how many miles per inch, allowing you to measure distance. The scale relates the distance on a map to the distance on Earth’s surface. Maps and globes are drawn to scale and use symbols to represent topography or other features on Earth’s surface. A globe is a sphere that represents Earth’s entire surface. A map is a flat model of all or part of Earth’s surface as seen from above. Maps show us what places look like, where they’re located, and the distance it takes to travel from location to location.
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