Aien
![](http://upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Iron_electrolytic_and_1cm3_cube.jpg/220px-Iron_electrolytic_and_1cm3_cube.jpg)
Aien, o aean, em i bin wan elemen blong Kemistri. Em i staka kapa blong nambatu blong wol. Simbol blong em Fe. Em i bin wan kaen metal. Aien i save kombaenem long okisijen blong air blong mekem rust.
Aien blong Indastri
Pipol ol i save yusum aien blong mekem plante kaen masin, baiskel, trak. Pipol ol i save mekem plante kaen tools blong aien.
Aien mo carbon ol i mekem steel; steel i strong i bitim aien.
Aien blong Niutrisen
Aien em i wan empoten pat blong helti kaekae. Yelo pat blong ol ek ol i gat plante aien insaed, mo ol fis mo jiken ol i gat fulap aien insaed.