Thursday, October 18, 2007

Turning Magnets On and Off

Did you know that a steel rivet can become a magnet? And then "turn off" as a magnet? It can! This week in class, science teams turned steel rivets into magnets. They created a complete circuit and then wrapped the wire around the steel rivet, making it become magnetized (it's called an electromagnet). Students could then use a switch on the circuit to turn the magnet on and off. Here's Mira's diagram showing the set up of the experiment...


Here are a few pictures of the scientists as work. You can see the rivet picking up the small washers.

2 comments:

Anonymous said...

That expiance was cool. Love, Kelkcee

Mr. Brown said...

I thought it was cool, too. I'm still amazed at how a piece of steel can be turned into a magnet. Electromagnets are really cool (and strange)!