Maps - Unit 2
The Shape of Earth
Watch this video to learn how to draw isolines - lines connecting points of equal value.
Determining Gradient (Slope)
Use the button below to understand times when slope is important to Earth Science as well as view practice problems and answers for how to calculate slope of a hill or other features associated with Earth Science. You do not have access to the quiz at the end.
Watch this video to see how to calculate slope on a topographic map.
Maps that represent the land surface
The video below is by a guy that works on ecological design. He is showing how he creates a contour map from a Google Earth terrain image. So simple, and so useful for so many different applications.
The following is a module that shows you different contour maps and what they would look like as 3-dimensional models. You can move them and add water to the model to see each contour level better.
The following is a series of steps to making your own topo map by beginning with your own 3-D model made from clay. Answer the questions at the end on the bottom or back of your topo map.
Click the image below to watch a video about the basics of topo maps:
Click the image below to open a step-by-step for how to drawn profiles.
Use the image above of the Cattaraugus County parcel map to get to the GIS application and create your hiking trails.