Question

The students took a bowl of iron nails, plastic pieces, wood shavings, and paper pieces. The bar magnet was placed inside the bowl for some time and then taken out. Several iron nails were stuck on the bar magnet. The experiment was repeated by several students using different bar magnets. Based on the investigations , which of these theories would the students most likely propose ? 2 points ) magnets attract all materials all materials are attracted to pieces some materials are repelled by iron pieces magnets attract only some materials

Answer 1

reposted the answer choices here, so they're a little easier to understand:

- magnets attract all materials
- not all materials are attracted to iron pieces
- some materials are repelled by iron pieces
- magnets attract only some materials

key sentences from the question: "The bar magnet was placed inside the bowl for some time and then taken out. Several iron nails were stuck on the bar magnet."

so the bar magnet attracts the iron nails at least. iron is a metal. what about the behavior of the other objects in the experiment (plastic, wood, and paper)? what does this tell you about the ability of magnets to attract or not attract materials?