Topographic Maps 1/29/10. Now your turn What we are doing: 1.Get in groups of four with your IANS...
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Transcript of Topographic Maps 1/29/10. Now your turn What we are doing: 1.Get in groups of four with your IANS...
Topographic Maps
1/29/10
Now your turn
• What we are doing:1.Get in groups of four with your IANS2.Each group get 1 piece of play-dough and a
ruler3.Stop and follow my instructions to begin4.We will all be doing this together
What is a topographic map for?
• A topographic map shows the elevation change of an area on a flat map.
• What do we mean by that?
We can show all these formations on a Topographic map
• It is sometimes important to have a map that shows the elevation of land on a flat paper surface—a topographic map. Why is this useful?
• Can hikers carry small three-dimensional models of the hills they walk?
• Not very easily! Maps are more convenient.
Transforming 3-D island flat map
2-D 3-D topographical map
Contour lines!
250mm0m
0m
150m150m100m
50m
50m 100m
200m
Vocab
• Contour lines- lines on a topographic map that show the elevation of the land touching that line.
Contour lines!
250mm0m
0m
150m150m100m
50m
50m 100m
200m
• What could this type of map be used for?1.Building projects (architects)2.Sea floor mapping for submarine/ship passage3.Road construction4.Military operations5.Hiking
What are the elevations found here?