Question

Laura is working on an art project she needs a rusty iron nail for her art work so she places a shiny new nail outside in it wet locations how will the air and water change the nail

Answer 1

It will make a chemical change that will make the iron rust in contact with oxygen and water.

Answer 2

Water is something that leads things to rust. Exposure to air also leads things to rust. Exposure to both of them will completely rust the nail if given time.