1. Magnetic lines of force travel from _______ outside the magnet.   north to south   south to north   2. The preservation of the magnetism of magnets can be done by using magnetic _______.   lodestones   fields   keepers   Hint Half-n-half Clue   3. Magnetic materials have millions of regions called _______, each of which acts as a tiny magnet.   fields   domains   lines   Half-n-half Clue   4. Magnetic lines of force intersect each other at right angles.   True   False   5. Magnetic lines of force can be drawn with the help of a _______.   divider   scale   plotting compass   Half-n-half Clue   6. Magnetic lines of force attract each other.   True   False   7. Magnetic line of force is a _______ continuous curve in a magnetic field.   closed   open