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Earth’s Magnetic Field and the Sun-Earth Connection
Developed by Hilary Clement Olson, Institute for Geophysics, Jackson School of Geosciences, The University of Texas at Austin
How to cite this work: Olson, H.C. 2009. Earth’s Magnetic Field and the Sun-Earth Connection, TXESS Revolution, WEBPAGE, Date Accessed.
Earth has a magnetic field that shields it from harmful cosmic radiation. In some ways, Earth's magnetic field behaves in the same way that magnetic fields on ordinary magnets behave (see the field around an ordinary bar magnet below as illustrated by the pattern of iron filings).
Image from http://en.wikipedia.org/wiki/File:Magnet0873.png; downloaded 10/13/2009
Research and Testing of This Activity
This activity was implemented in the following teacher professional development workshops: (1) TXESSS Revolution PDA 5B, and PDA 5C (2009), funded by the National Science Foundation Opportunities for Enhancing Diversity in the Geosciences program. Feedback from teachers was used to refine the activity.
Teachers who attended PDA 5B, and 5C rated the activity as shown in the tables below.
TABLE NEEDED Table 1: Activity rating by X TXESS Revolution teachers in PDA 5B (2009).
TABLE NEEDED Table 2: Activity rating by X TXESS Revolution teachers in PDA 5C (2009).