Let’s Learn: Distortion!
Why are maps and globes distorted?
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Even though maps and globes are similar, they also have some differences. One major difference is their accuracy. Accuracy means how correct something is. One way of representing Earth is more accurate, or correct, than the other.
Which one do you think is more accurate—a map or a globe?
Did you guess the globe? If so, you are correct! A globe is more accurate than a map. It's more accurate because of something called map distortion. Click through the slideshow to learn more about map distortion.
What Is Distortion?
Distortion means that something has been bent, twisted, or changed from its natural shape. For example, stand in front of a mirror. Now, stick out your tongue and make funny faces. Do you see how your face moves? You are distorting your face.
Which Is More Distorted?
Do you think a globe or a map is more accurate? Let’s think about it for a moment. What shape is Earth? Round, right? Well, globes are also round. Maps are flat. Therefore, a map is more distorted than a globe.
Click image to enlarge
Why Are Maps Distorted?
Maps are made by taking information from globes. The information is turned into a map that is flat and usually rectangular. To make a 3-D map flat, some distortion always takes place.
Click image to enlarge
How Are Maps Distorted?
If you peel the paper surface off a globe, it wouldn’t form a rectangle. It would look more like this picture. Do you see how some places at the top and bottom of the map are split up?
Question
Is a map more accurate than a globe?
No! A map is distorted. A globe is more accurate than a map.