Download Introduction to Topographic Maps (Youtube Video by Seth Horowitz)

Introduction to Topographic Maps (Youtube Video by Seth Horowitz)
Pick out the important information while watching the video and fill in the blanks below.
Topographic Maps (AKA contour maps) show __________________
(height above sea level)
elevation
Contour lines
shape
and _______________
by using ____________________.
Contour interval- the ____________________
in elevation between consecutive contour lines.
Difference
elevation written.
wdark contour lines that usually have the _______________
Index contour lines- heavy,
MAP RULES
steeper
1. The closer the contour lines, the ___________________ the slope.
2. Contour lines bend upstream and form a “V” when crossing a stream, river, or creek.
tip of the “V” points towards the source of the water.
The ______
3. Rings
________ of consecutively smaller contour lines represent mountains/hills.
below the value of what the next
4. The highest possible elevation of a hill is just __________
contour line would be.
depressions They are shown
5. Areas where the land dips down are called _____________________.
with small marks called hachures or hatch marks.
Examples: Volcanic craters or _____________________
Meteor impact craters
6. At a depression, the first hachured line has the ________________
elevation as the
same
_________________
previous contour line.
above the value of
The lowest possible elevation of a depression is just _______________
what the next __________________
line would be.
contour