Paper makes crackling noise when we crumple it into a ball. As we squeeze it, it crumples in a lot of jumps, some big, some small. Each jump is where a small part of the paper bends or jumps into a new place, and gives off a single crackle sound. Magnetizing Experiment Get a magnet and some paper clips. Most paper clips are made of iron.
Magnets pull on things made of iron.
Now, rub a paper clip with the magnet.