In which medium will sound travel faster – in air, water, or iron?

iron

water i beleive

Iron. The denser the material, the faster sound travels.

Iron, because its the most dense. Then water, and then air.

iron, its the most dense

EDIT for all the people saying it travels faster through water, try reading your science book, I learned this in seventh grade, iron is a solid and has tightly packed molicules that vibrate, water on the other hand has free flowing molicules, air has loose free flowing molicules, since iron is the most dense and it is a solid, it will travel fastest through it

Water...

BS travels faster through air though... Just watched Obama's speech...

in water.

Iron because sound goes faster through solid dense things

WATER