Across
- 4. a magnet that keeps its magnetism for a while
- 6. to have two opposite poles
- 8. to bring together
- 10. a piece of iron that attracts another piece of iron
- 12. the space that surrounds a magnet
- 13. significant magnetic properties
- 14. negative (-)
- 15. a tool that uses a magnet to help people find direction
- 16. a magnet that loses its magnetism after time
- 17. positive (+)
- 18. to drive two poles away from each other
- 19. electrical charge that flow in one direction
Down
- 1. a magnet shaped like a "U"
- 2. a magnet made from iron wrapped by a coil of wire
- 3. a power that causes change
- 5. the two ends of a magnet where its the strongest
- 7. an invisible line connecting the north and south poles
- 9. electrical charge that reverses direction
- 11. a slivery-white chemical element
- 12. ability to attract iron or metal