Map Skills Lesson Five : Contour Lines. Geographical features: Physical or Human? Sort the map symbols into categories of physical (natural features)

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Presentation transcript:

Map Skills Lesson Five : Contour Lines

Geographical features: Physical or Human? Sort the map symbols into categories of physical (natural features) and human (man-made features). Are there any that you are unsure about? Can you find any of these symbols on the OS map? Can you name the four-figure grid reference for five of the symbols?

How could we find this on a map? © Wikipedia Commons

How is this landscape shown on the OS map? © Wikipedia Commons

How it would appear on an OS map

Triangulation Pillars © Peter Robinson Triangulation pillars (or trig points) were surveying points formerly used for measuring the exact location of: Land boundaries, railways, roads, and other infrastructure. Despite not being in use anymore, many trig points are useful for hikers as navigation points.

Contour lines and gradient © Wikipedia

Contour lines Can you match the contour lines with the landform?

Draw around each contour line onto thick card. Cut out each piece. Stick together with a layer of thick card in between. Make sure each layer is the same width apart. Main activity Make a 3-D model using contour lines

How to make a contour model Trace the contour line Stick thick card in between each contour line layer

Plenary How would the landscape features appear on a map? Have a go at drawing the contact lines?

Cliff The White Cliffs of Dover © Tobias von der Haar, Flickr

V-shaped valley Grand Canyon of the Yellowstone, Brink of Lower Yellowstone Falls, Yellowstone National Park, Wyoming © Ken Lund, Flickr

U-shaped valley Classic U shaped Valley on east side of Chinook Pass © Robert Ashworth, Flickr

Answers