If you put a cereal flake in a bowl of water you can steer it with a strong magnet. The magnets above aren’t strong enough, but the really powerful ones below (that are dangerous to pull apart as they can actually injure you) are:
And if you grind the cereal into powder, the powder sticks to the magnet because of the iron atoms in the cereal:
Inspired by the Veritasium channel.
Geeks out of the box 