Magnets

Magnets are fun to play with.  Have you ever had two magnets and wondered why sometimes they wouldn't stick together?  Well on a magnet there are north and south poles like on earth.  If you try and put two north poles together there going to repeal each other. This same thing would happen if you tried to put two south poles together.  If you put a north and a south pole together then they would stick without trouble.  The reason the north to north and south to south wont stick is because they have the same magnetic field. 

Electricity and magnetism have something in common.  They both only attract if there opposite and don't if their the same.  On earth we have our north and south poles and they also have their own magnetic fields.  The core in the earth spins really fast and burns lots of cobalt thats why we have or magnetic field.  That's why when your lost and you have a compass the needle points north. 

Things that have iron, nickel, or cobalt are magnetic.  Did you know that your cars had cobalt in them?  That's why those big magnets can pick up the cars at the junk yard.  Some of the things we use in our homes are magnetic.  One time I was using someones charger to charge my phone and it was magnetic.  I walked past a refrigerator magnet and I saw it get stuck.  You never know what can be magnetized until you try it out.