Question

earth science
name:______ assignment #1
date:____ period:____
topographic map worksheet #1
base your answers to the following questions on the topographic map below. points a, b, c, d, and x represent locations on the map. elevations are measured in feet.

1. what is the elevation of each of the following points?

a. ______ b. ____ c. ____ d. ______

1. what is the contour interval of this map? ________

Explanation:

Step1: Determine contour interval

Observe the elevation values on the map. The difference between consecutive labeled contour lines (e.g., 900 - 1000) is 100 feet. So the contour interval is 100 feet.

Step2: Find elevation of point A

Point A is on the 900 - foot contour line. So the elevation of point A is 900 feet.

Step3: Find elevation of point B

Point B is on the 1100 - foot contour line (since the contour interval is 100 and counting up from 900). So the elevation of point B is 1100 feet.

Step4: Find elevation of point C

Point C is on the 1500 - foot contour line as labeled on the map. So the elevation of point C is 1500 feet.

Step5: Find elevation of point D

Point D is on the 1000 - foot contour line. So the elevation of point D is 1000 feet.

Answer:

1. A. 900 feet

B. 1100 feet
C. 1500 feet
D. 1000 feet

1. 100 feet