What to Do
Learn about magnetism by doing the experiments that follow.
Seeing is believing!
Materials You Will Need
2 dry cell batteries (#905)
A few feet of No. 18 bell wire
3 steel knitting needles or similar hard steel
2 ft. of light thread
Sheet of light cardboard or stiff paper
Permanent magnet (bar or horseshoe)
Compass
1 or more large nails or spikes
Red and black china-marking pencils or crayons
Iron filings
Wire cutters
Carpet tacks
(Iron filings usually can be found under the grinding wheel in a shop. If you can't find any, rub some steel wool pads together to produce bits of metal that will do.)