Class+2-Magnets+2

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FUN FACTS


 * == Lodestone is magnetic. ==
 * == Like poles repel each other, opposites attract. ==
 * == There is a magnetic field around a magnet when it has an electric current. ==
 * == Without magnets and magnetism, people would have a hard life because they are in most things in daily life. ==
 * == Electricity is magnetic. ==

Teacher Tube

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History of Magnetism

 * == People have been using magnetism for hundreds of years to navigate. ==
 * == Ancient Greeks were the first to recognize magnetism. ==
 * == A shepherd named Magnes discovered lodestone because parts of his staff and shoes were metal. Therefore, the lodestone was attracted to the metal. ==
 * == About a thousand years ago, explorers discovered that a piece of lodestone floating in water always pointed in the same direction, which was magnetic north and magnetic south. (The first magnetic compass) ==

Disadvantages

 * == Magnets can only work with some materials- iron, nickel, cobalt. ==
 * == When magnets are too close to electronics, it could swipe memory. ==
 * == You might choke on a magnet. ==

Advantages

 * == Magnets can be used in medicine- MRI- magnets attract metal elements in the body like blood and iron. ==
 * == You can stick important notes, pictures, papers, and memos on your refrigerators or any other magnetic materials. ==
 * == Magnets are in motors. Motors are in cars, microwaves, roller coasters, etc. ==
 * == They can pick things up for us.(Must have iron, nickel, cobalt.) ==

Uses of Magnetism

 * == Credit/Debit Cards- The strip on the back of the card has the account information that has magnetic particles. ==
 * == Door (Latches)- Even though the door does not get closed completely, the magnets will attract and close the door. ==
 * == Hard Drive- ==
 * == Television- TVs use electricity, and electricity is magnetic. ==
 * == Microphones- ==
 * == Compasses- The compass needle always points magnetic north and magnetic south because it is magnetic. ==
 * == Motors- ==
 * **Computers- They have motors in them.**

Personal Experiences
== Sarah : For Christmas a few years ago, I got a kit that had a large magnet, and 100 magnetic, mini dolphins. I put the dolphins in a pile, and hovered the large magnet above the pile. The magnet was so powerful and strong, that it attracted the dolphins and made a tall tower!==

Varalika : I played a game with magnetic darts. When I threw them on to the fridge, they stuck! I played by myself.
== Natasia : I once put a magnet on top of a table. I held another magnet underneath the table, right under the top magnet. I dragged the bottom magnet around, and it pushed the magnet on the top around. It looked like the top magnet was moving around on the table by itself! ==

__**Works Cited**__ EHow. Demand Media, Inc., n.d. Web. 14 Feb. 2013. <[] list_7595886_disadvantages-magnets.html>.

EHow. Demand Media, Inc., n.d. Web. 14 Feb. 2013. <[] about_6531868_history-magnets-electromagnets.html>.

Magnets. N.p.: Gareth Stevens, 1998. Print.

What is magnetism. Mainframe, n.d. Web. 14 Feb. 2013. <[]>.