Unit Links: What do maps show? 

The Planet Earth and how it works

Earth's Shape & Evidence for it (3 pieces):

1.

2.

3.

Density=

% Error:  (Actual – Experimental)  * 100

                            Actual

ERATOSTHANES METHOD:

 Circumference = Distance of Arc * # Arc’s in Circle

200 km * 8 (there are 8 45 ^o  slices in 360 ^o circle)= ______

Fields: topography maps, contours, gradient and slope:

Gradient =  change in field value

                       change in slope

 For elevation:  difference in elevation (m)

                        distance between the points

Also!! Isotherms, Isobars

60

40

20

Point A                                                          Point B

This would be what a PROFILE might look like between two points.  Draw the profile from point E to G on the diagram to the left..