By A Mystery Man Writer
The magnetic compass is one of the most important instruments for navigation.
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Silva ® 1-2-3 Starter Compass - Easy to read, Perfect for little
Land Navigation: How to Orient With a Map & Compass
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How to Use a Compass: 15 Steps (with Pictures) - wikiHow
Geography on ZME Science
How to make a magnetic compass guide for KS3 physics students
How to Use a Compass Step-by-Step - Dalvey
How to Make a Compass: 8 Steps (with Pictures) - wikiHow