How to calculate the topographic slope on a map? By Mrs. Ruault-Djerrab. 

This video explains quickly and very clearly how to calculate the topographic slope on a map. To make this calculation, some prior knowledge is necessary: ​​knowing what are the contour lines, the equidistance and the scale of a map. All these notions are explained in my other videos (see links below).
This video has been put online for beginners in geology, in particular in License 1 and 2 at the University, or for high school students in science.
Useful links to my other videos:
What is the equidistance of a map? : • C'est quoi l'équidista...
What is the scale of a map? : • C'est quoi l'échelle d...
For more details on sedimentary geology, consult the site: djerrab-geologi...
To see all the photos featured in my videos (and more), check out my new photo site: adjerrab.wixsi...