Periodic Table

Across

2. ur dioxide
4. Ur nitro type
6. Silly clown
7. Ur sliver
9. foil
11. ur ballon
12. Ur pappy
14. Ur hard-won

Down

1. Ur breath
3. America
5. Ur glow stick
6. toxic air
8. superman planet
10. toothpaste
13. character