Digital Lesson 7.4 Flashcards
Relief
Difference between the highest and lowest elevations in a given area
Scale
Relationships between the measurements on a model, map, or diagram and the actual measurement or distance
Index contour
On w map, a darker, heavier contour line that is usually every 5th line
Topography
Size and shape of the lands surface features of a region, including its relief
Slope
Measure of the slant of a line; the ratio rise over run
Contour line
Line that connects equal points of elevation on a map
Contour interval
Difference in elevation between one contour line and the next
Why are maps useful
Large areas of earths surface can be displayed on a small flat surface
Topographic map
Map that shows the surface features of earth
What does a topographic map show
The shape of earths surface with lines representing different elevations
Why are aerial and satellite images used in mapping
They provide a viewpoint that we can’t get in earth. Satellites have sensors that detect light we can’t see
Low relief
Little change in elevation; plains
High relief
Elevation changed a lot like in a mountain range
Contour interval for a mountain
Large interval
What type of contour intervals will areas of high and low relief have
High reliefs: large contour interval
Low reliefs: small contour interval
