I need more facts about the GPS and compass to use in my writing piece.
3 answers
http://adventure.howstuffworks.com/outdoor-activities/hiking/compass-or-gps.htm
Did you see the site I posted for you about the GPS?
http://www.jiskha.com/display.cgi?id=1266962635
http://www.jiskha.com/display.cgi?id=1266962635
Here is a fun activity you can read about. My Girl Scouts love to do this.
http://www.geocaching.com/
http://www.geocaching.com/