Shut your eyes and think about the refrigerator at your house. Raise your hand if there is something sticking on your refrigerator. At the end of class today, you will have learned what a magnet is and compare the strengths of different magnets. A magnet is an object that attracts metal. Magnets can be natural or man-made.
Magnetite is a mineral that is a natural magnet.
Man-made magnets are made from steel. Magnets can pick up or stick to iron and steel. Magnets come in many sizes, shapes, and strengths. Set up various magnets at different locations in the classroom. Groups of students will work at each station, rotating at intervals as instructed by the teacher.