Provided by Tasa Graphic Arts, Inc.
Introduction To Topographic Map Activities
As you progress through each chapter in the Introduction to Topographic Maps CD-ROM, answer the questions and complete the exercises. Double click on the hard drive icon. Double click on the folder marked "Topo map." Double click on the TASA icon and that will bring you to the buttons used to run the programs. Note which buttons move you forward, backward, and back to the Main menu. Double click on the word "INTRODUCTION" and answer the questions. REMEMBER: Not all frames have questions. Look for the exact wording to find the right answer.
|A.||Click on "Introduction" and answer
1. What is an aerial view?
An overhead view
2. What is the purpose of a topographic map?
To illustrate physical and cultural features that occur on Earth’s surface
3. Earth scientists use topographic maps to determine four things
a. To determine locations4. Who produces topographic maps in the United States?
USGS, United States Geological Survey
5. Approximately when were topographic maps first created?
|B.||Return to the main menu after answering question 5. Click
on "Map Scale" and answer questions 6-9.
6. What is the purpose of a map scale?
To show relation between distance on the map and true distance on Earth
7. Where is the map scale located on a topographic map?
Center of the lower margin of the map
8. What are two ways that are used to express map scales?
Fractional and graphic bar scale
9. Answer the four sample questions on map scale.
a. C, about 7 miles
|C.||Return to the main menu after answering question 9. Click
on "Latitude and Longitude" and answer questions 10-18.
10. What are two methods used on topographic maps to indicate locations?
Latitude and longitude and Public Land Survey
11. Define latitude and explain how it is measured.
Latitude is the distance north and south of the equator. It is measured as an angle from the center of Earth, north and south of the equator.
12. 0 degrees latitude is located where?
13. 90 North degrees latitude is located where?
14. Lines of latitude are also called?
15. Define longitude and explain how it is measured.
Longitude is the distance from the prime meridian. It is measured as an angle from the center of Earth, west and east of the prime meridian.
16. 0 degrees longitude is called?
17. Longitude lines are also called?
18. Longitude is measured in degrees and also smaller measurements of minutes (') and seconds ("). What is the exact location of Paris in degrees, minutes, and seconds?
Latitude 48 degrees 27'50"N; Longitude 2 degrees 8'42"E
|D.|| Return to the main menu after answering question
18. Click on "Principles of Contour Lines" and answer questions
19. Define topography.
The shape of the land
20. Most topographic map reference plane is usually general mean
21. What is a contour line?
Line that connects points of equal elevation
22. Define datum.
Average sea level
|REVIEW THE SEVEN RULES USING CONTOUR
LINES. THESE RULES WILL BE USED TO CREATE YOUR OWN
23. What is a contour interval?
Vertical change between one contour line and the next
24. What is an index contour?
Every fifth contour line and is printed as a bold line
25. What do the initials B.M. mean in reference to topographic maps?
Bench Mark or reference points of elevation
26. Answer the two sample questions.
a. D 551227. In addition to indicating elevation, contour lines can be used to determine the directions
that rivers and streams flow.
Return to the main menu after answering question
27. Click on "Using Contour Lines" and answer questions 28-33.
28. List three important uses of contour lines.
a. Determining elevation of points or planes
|PRACTICE DETERMINING CONTOUR INTERVALS
|29. What is a relief?
Difference in elevation between two points
30. What is the total relief?
Difference between highest and lowest points on the map
31. What is local relief?
Difference in elevation between two specified points
32. What is the slope?
Change in elevation between two places divided by the horizontal distance between the places
33. Answer sample questions on local relief. Look for the exact wording in "Using Contour Lines."
a. Choosing from the answers provided below, indicate the contour interval used for this map by dragging the correct answer to the box provided.
|F.|| Return to the main menu after answering question
33. Click on "Topographic Profile" and answer question 34.
34. Define topographic profile.
Translate the overhead view into a side (profile) view
|FOLLOW THE INSTRUCTIONS ON DRAWING A
PROFILE MAP AND COMPLETE AN EXAMPLE.
|G.||Return to the main menu after answering question
34. Click on "Drawing a Contour Map" and practice drawing a simple
contour map. Note: If you have extra time, draw more complex maps.
|H.||Return to the main menu after drawing a contour
map. Click on "Review" and test what you have learned.
|I.||For further information, return to the main
menu, click on "For Your Information" and go through questions 1-9.
|IF YOU ARE HAVING TROUBLE WITH DEFINITIONS,
GO TO "GLOSSARY" FOR HELP.
|©Judy Richeson 7/24/01|