What word in the dictionary is spelled incorrectly?

I make white and brown balls, Known to break after falls. And when I reach a crossroads, The other side calls.

What has a head and a tail, but no body?

I can brighten the darkest day, No light, no switch, yet chase gloom away. A smile’s my signal, a laugh my cue... What am I that lives in you?

Born of grain but never bread, I dance with bubbles, crisp but not dead. A liquid gold in frosted hold, I'm known to bring the brave more bold.