Materials: For each group of four students: Large nail Bar magnet Iron filings Small nails or paper clips "Neighborly Nail" sheet Teacher Knowledge: Magnets can make ordinary steel objects into magnets themselves.
(Large nail Bar magnet Iron; filings; Small nails or paper clips) Context(Large nail Bar magnet Iron filings,List([44, 78))):(Magnets; can make; ordinary steel objects)
Large nail Bar magnet Iron filings,List([44, 78))
Large nail Bar magnet Iron Magnets
filings can make
Small nails or paper clips
ordinary steel objects