Description: The earth revolves around the sun in an orbit which is a special geometric figure called an ellipse. An ellipse has two "center points". Each one is called a focus. The Sun is not in the exact middle of the earth's orbit.
Keywords: ellipses, earth, revolves, sun, orbit, special, geometric, figure, called, ellipse, center, points, focus, exact, middle
Created by: Tim Conner Added: 2005-09-01
Earth Science (Astronomy) Views: 3855
File: Be sure you have an application to open this file type before downloading. Click here for more information.
The continued strength of this site depends on teacher contributions. Please help make this site stronger by submitting a file today. Submitting is easy, simply click here to get started. Thanks!
For classroom use under a: Creative Commons License