Reporting Category 3: Earth and Space
TEKS
8.9C: The student is expected to interpret topographic maps and satellite views to identify land and
erosional features and predict how these features may be reshaped by weathering.
Answer
close together. Hiker A started with a gradual slope and ended with a steep slope but traveled
father than hiker B. Hiker C had
the longest hike but the most gradual slope because the contour
lines were the farthest apart.
because it has the steepest slope. The water flowing down the hill will have the greatest amount
of kinetic energy.
Teacher Notes
The contour lines on a topographic map provide a lot of information about the land. On this map,
the contour interval is 20 feet. If the contour lines are closer together, the slope of the land is steep.
If the contour lines are farther apart, the slope of the land is gradual. Weathering due to water will
generally be greater where the land is the steepest, depending on the type of rock or surface.
