Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. Imagine leaving your shiny metal bicycle outside ...

Also referred to as oxidisation, rust happens when water and air come into contact and react with uncovered metallic surfaces. Rust works well with water and can be worse in salty areas because salt ...

Imagine leaving your shiny metal bicycle outside in the rain. As water pools on its surfaces, oxygen from the air lingers nearby, and together they begin to quietly attack the metal. The iron in the ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Guangwen Zhou, Binghamton University, State University of New York (THE CONVERSATION) ...