Here you will be using the SandBox to make a profile along the topography. From you map given to you by your teacher, construct the topography in the SandBox.
Once the topography has been built, then select two pieces of string. Choose a start and end point. Mark them in the sand with the markers given to you by your teacher.
Once piece of string show go from the start to the end along what you think is the flatter route.
Once you have placed the string along this route then use the ruler to measure its length and count the number of contours along the route. Place the numbers in the table below for the flat route.
Next, another person in the group should place another piece of string along the steepest route between the same start and end points.
Once you have placed the string along this route then use the ruler to measure its length and count the number of contours along the route. Place the numbers in the table above for the steep route.
If needed use photo log sheet and note taking sheet.
AT THE END, SHOW YOUR TEACHER THAT YOU HAVE COMPLETED MEASURED THE LENGTH OF THE STRING AND CONTOURS FOR EACH ROUTE. Explore 4: Comparing maps and understanding profiles and contours [5 mins] Here, your teacher will bring you back together as a class.
Sit together in your groups and decide who will write the information on the board.
Write on the board how many contours your two routes had?
As a class, you will discuss the decisions made by each group. Which route is shortest for distance? Which is flatter?
Once you are asked by your teacher to finish of the Lesson then answer the following questions:
How much elevation change occurred and what was the total distance, in Google Earth, from your two routes?
Route A:
Route B:
Why is walking up/down fewer contours the better option?
SHOW TO YOUR TEACHER THAT YOU HAVE ANSWERED THE QUESTIONS.
TEACHERS RESOURCES PHOTO LOG SHEET AND NOTE TAKING SHEET