For too long silver has been used to mark second best but this element deserves more recognition thanks to its antibacterial properties.
Titanium is a tough but light metal that makes great replacements for bone in our body. But it has plenty of other uses in industry as well.
On its own it's just tin. But mix it with other elements and it turns into a material that helped shape the ancient world.
Ever watched a space shuttle launch? The fuel used to thrust these huge structures away from Earth's gravitational pull is hydrogen. Hydrogen could also be used as a household energy source.
How do you return Aboriginal remains to their place of origin when you have no record of where they came from? Look to a chemical element that's laid down in teeth as people grow up.