An ancient treasure in Spain contains meteoritic iron, proving early civilizations worked with celestial metals centuries ...

Nickel allergies are becoming more and more prevalent US. Every time I approach an unfamiliar metal object, I feel a tiny jolt of unease. That's because I am one of millions of Americans who are ...

Continue making predictions and testing each object. The paper clips, jar lid, and nail are probably magnetic. The metal spoon will be magnetic if it is stainless steel but not magnetic if it is ...