What I Learned About Electromagnets

One day my teacher said “every one for homework you will be doing a blog post about:

What I learned:

• electromagnets are temporary. They are temporary because if you disassemble it, it won’t be a magnet because there is no power source
• I learned that the less wire you wrap around the bolt, the less the electromagnet will attract.

My questions:

• how do magnets repel each other?
• why do magnets stick to each other?
• why does electricity help magnets stick to other things?