Embed Size (px)
DESCRIPTION
PowerPoint presentation sample from an Earth Science packet that contains 48 successfully proven in the classroom presentations that cover all areas of Earth Science from middle school to college. A full description of the content that all 48 presentations cover can be found by going to http://pickinpost.net/Education/education.php and reading the short summary. If you would like to purchase please click on the MAKE OFFER button that will allow you send me an email in your interest. I will respond with how you can easily own these presentations and start using them in the classroom. Thank you for watching!
Citation preview
Topography
•Topography – variations in elevation over a landscape.
Contour Lines•How can a flat map show steep
or shallow an uneven surface on earth?
•Contour lines: line that connects points of equal elevation.–Drawn at a set elevation (every 10m, 50m, 100m , etc.)
–Closer the lines the steeper the elevation and vice versa.
Contour Lines• Index Contour:
darkest, labeled contour line.
• Contour interval: contour lines that are not labeled.
• Closed Contour: indicates a top of a hill or mountain.
• Hachure: contour line with dashes.
600m
600m
Slope• Steepness of the land is called slope• Contour lines that are spread apart
indicate a gentle slope.• While contour lines that are very close
depict a steep slope.
Using Topographic Maps
