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Magnets Date: Friday, October 5, 2012

 Magnets are attracted to objects that contain iron, nickel, or steel.  Magnets are not attracted to objects that are made of materials like wood, paper, aluminum, or copper.  Magnets are strongest at the poles.  Magnets have a North and South Pole.  Different (opposite) poles will attract and same (like) poles will repel.  The Earth is a giant magnet and has a magnetic field. That magnetic field causes a compass to always point north.  A compass is a tool to help you find direction.  There are many types and shapes of magnets.  We use magnets everyday in many ways.  Some magnets are permanent and others are temporary. Temporary magnets can be turned on and off (electromagnets).  The original magnets were rocks discovered by the Chinese called lodestones. For your test, be able to: 1. Tell several objects that are magnetic and non-magnetic (attracted and not attracted to magnets). 2. Look at two magnets with the poles labeled and tell if they will attract or repel. 3. List some ways we use magnets every day. 4. Know the information above. Use your science notebook, magnet book, and crossword puzzle to help you review. We will make the magnet book and complete the crossword puzzle later this week.

Cut off bottom and return to school tomorrow. Keep top part at home to help you review. I know there is a test on magnets on Friday, October 5, 2012. Student Name ____________________________________________________ Parent’s Signature ___________________________________________________

Magnets parents  
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