Magnetism was discovered about 4000 years back in ancient Greece.
Some items such as iron and nickel get attracted to magnets and are called magnetic materials.
Items that do not get attracted to magnets are called non-magnetic.
Learn about the 4 basic properties of a bar magnet:
Learn about magnets and magnetism.
A SmartTest on Magnetism
Learnhive lesson plan on Magnetism.
Learnhive Lesson on Magnetism