How to Make a Topographic Mountain Map
A topographic map is a two dimensional representation of the three dimensional world we live in. Topographic maps depict both natural and man-made surface shapes and their corresponding elevation. They have applications in things such as engineering, natural resource development, public works and hiking. The United States Geological Survey (USGS) uses advanced technology such as aerial photography and satellite data to compile the most accurate topographic maps in United States history; these maps are available for viewing online. To get a small scale idea of how topographic maps work, you can make your own topographic map that represents a single mountain in your kitchen with minimal time and supplies.
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Things You'll Need
- Modeling clay
- Ruler
- 2 unsharpened pencils
- Dental floss
- 1 piece of paper
- 1 sharpened pencil
Instructions
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1
Construct a mountain out of modeling clay. It should be approximately four inches tall and have a sold base, but otherwise, the design is up to you. For a more interesting topographic image, make your mountain atypical, with varying slopes or jagged edges.
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2
Poke two holes using the two pencils from the summit through to the base. Be sure that they are far enough apart so that the two holes do not merge into one somewhere in the middle. These holes will serve as markers that will keep your map accurate.
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3
Wind the dental floss around both your index fingers and pull it tight. Slice your mountain into one inch horizontal sections using the floss to cut it.
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4
Trace the mountain onto the center of the paper, beginning with the top. As you trace each section, be sure to align the pencil holes so you are accurately representing your model. The pencil lines that represent the layers may or may not overlap; it depends upon the shape of your mountain.
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5
Compare your homemade map with online topographic maps that depict mountains to compare and contrast.
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Tips & Warnings
To learn how to make your own modeling clay, click here for a simple recipe: http://familyfun.go.com/crafts/play-clay-665766.
