CLASSROOM CONNECTORS TIME REQUIRED: 3 to 5 instructional periods MATERIALS: a variety of magnets (bar, horseshoe, etc.), nails, paper clips, steel knitting needles, compasses, small test tubes with coils (or small glass jars with lids), iron filings, iron wire, pliers or wire cutters, 10-inch squares of stiff paper, pencils, string, sewing or darning needles, glass, water, cork, dry cells, lots of copper wire, large iron nails SIGNIFICANT TERMS: Compass, electromagnet, lines of force, magnetic field, magnetism, poles SET: (Have on hand a variety of magnets - different shaped magnets and magnets made of different materials.)
(CLASSROOM CONNECTORS TIME; REQUIRED; ) (different shaped magnets and magnets; made; of different materials)
CLASSROOM CONNECTORS TIME different shaped magnets and magnets
REQUIRED made
of different materials