- Topographic Maps: Maps that show the shape and elevation of the land using contour lines.
- Contour Lines: Lines on a map that connect points of equal elevation.
- Contour Interval: The difference in elevation between two adjacent contour lines (given as 10 meters).
- Index Contour: A thicker, labeled contour line that appears every fifth contour line to make reading easier.
- Hachure: Short lines drawn perpendicular to contour lines on the downhill side to indicate depressions or closed basins.
- V-Shaped contours: Downhill: Point upstream, indicating a valley or stream; Uphill: Point downstream, indicating a ridge.
- Hilltop: The highest point on a hill, typically shown by concentric contour lines with the innermost line being the peak.
- Closely spaced: Indicates steep terrain or a rapid change in elevation.
- Widely Spaced: Indicates gentle slopes or flat terrain.
Parent Tip: Review the logic above to help your child master the concept of topographic map worksheet middle school.