Across
- 3. What is the colourful glow in the night sky???
- 4. wwhat is the giant magnet at the center of the earth??????
- 5. which metal can be easily magnetised?
- 6. magnets are used in compasses to show??
Down
- 1. what is the name of the invisble force that spreads from the poles of a magnet?????
- 2. what are the two places where magnetic force is strongest????