Barium.
Why do we have to do all the work
Finger-prints.
Heelium!
Pupil: Fire Earth Water and the Internet. Teacher: What do you mean the Internet Pupil: Well Mum says that whenever I'm on the Net I'm in my element.
When it falls to the ground, it knocks the 'ell out of it.
The Ground
Because, if you can't helium or curium, you'd barium!