Topographic Map Practice

The distance between two contour lines is called a contour interval. The contour interval is used to show the change of elevationin meters or feet from one contour line to the next adjacent line. The closertogether the contour lines, the steeperthe slope. The further apart the contour lines, the more gradual the slope. To determine the interval between contour lines, find a bold, labeled line, called an index contour, and note its elevation.Rivers are always shown on topographic maps as a line running perpendicular to contour lines. These lines bend, or “V”, upstream, meaning that the point of the V points toward the source. When the contour lines are closer together the incline is steeper. This means that the river would be flowing faster. Use the map above to complete the table below. What is the elevation of point X? 260 What is the elevation of point Y? 220 What is the elevation of point Z? 140 What is the difference in elevation between points X and Y? 40 What is the difference in elevation between point Y and the highest point on this landform? 198 What is the difference in elevation in between points X and Z? 120 Use the map above to complete the table below. What is the elevation of point A? 460 What is the elevation of point B? 620 What is the elevation of point C? 660 What is the difference in elevation between the two points labeled A C? 200 What is the difference in elevation between point B and the top of the hill? 106 Use the map above to complete the table below. What is the elevation of point F? 740 What is the elevation of point G? 800 What is the elevation of point H? 760 The location of two hikers is marked on the topographic map to the right as points F and H. Each hiker climbed to point G along the path indicated by the arrow. What was the change in elevation for the hiker that took the steepest path to point G? 60 What is the difference in elevation between the starting points of the two hikers? 20 Use the map above to complete the table below. What is the elevation of point W? 290 What is the elevation of point X? 350 What is the elevation of point Y? 360 A hiker is standing at point X. What will be the change in height in meters for this hiker when she reaches the highest point of the hill? 157 What is the difference in elevation between the two points labeled W and Y? 70 What is the difference in elevation between point Y and the highest point on this hill? 147 Use the map above to fill in the table below. What is the elevation of point X? 760 What is the elevation of point Y? 720 What is the elevation of point Z? 880 What is the difference in elevation between Y and Z? 160 What is the difference in elevation between points X and Z? 120 What is the difference in elevation between point X and the highest point on the landform? 193 Use the map above to complete the table below. What is the elevation of Point Q? 440 What is the elevation of Point R? 500 What is the elevation of Point S? 450 The location of two hikers is marked on the topographic map above as points Q R. Each hiker climbed to point R along the path indicated by the arrow. What was the change in elevation for the hiker that took the steepest path to point R? 50 What is the difference in elevation between points Q and S? 10 Topographic Profiles - Mountain or Molehill Topographic profiles are views illustrating a cross-section of an area. They are created based on contour maps. A line, or transect, is drawn across the map. The distance between contour lines and elevation is recorded. This data can be plotted on a graph allowing a three-dimensional interpretation of the landforms. Look at the example below.Directions: Look at the picture and find the transect line labeled A -- BMake a point on the map every time the transect line goes through a contour line.Using the drawing tools, make a dashed line from the point on the map to the correct altitude line on the graph.When all of the points are plotted on the graph, connect the dots on the graph to take a look at the profile of the map. Use the map you created above to complete the table. What is the contour interval of this map? 50 What is the highest elevation of this map? 1943 Which side of the map is the easiest to climb? west Is this a mountain or a molehill? molehill Directions: Look at the picture and find the transect line labeled A -- BMake a point on the map every time the transect line goes through a contour line.Using the drawing tools, make a dashed line from the point on the map to the correct altitude line on the graph.When all of the points are plotted on the graph, connect the dots on the graph to take a look at the profile of the map. What is the contour interval of this map? 100 What is the highest elevation of this map? 2050 Which side of the mountain is the steepest? West The Most Erosive Area on the Padma Use this website to answer the following questions: Satellite Images What is the satellite image showing? how the river has been transforming in shape, size, and location The path of the river how the direction of the water flows in the river What is causing the river to change? Weathering Erosion Deposition What helps hold sediment in place to prevent erosion? rock vegetation water