These are only magnetic when electricity passes through them. They are used in a scrap yard and are used for an electric door bell. There are two ways you can make them stronger these ways are more turns and turn up the voltage.

By Stephanie Chapman 8wa 

Homework – have a look at this http://www.howstuffworks.com/electromagnet.htm

Can chemistry really be organic? I thought that was just food! I also discovered today that oil can be crude. Well I never.

organicchem-copy.pdf