What Am I Riddles

Question: You wait for it. It appears, cracks, stays for a moment, then disappears before your eyes.

Question: Travel a mile and I will change.
Travel a million and I will end as I started.

What am I?

Question: My first is often at the front door.
My second is found in the cereal family.
My third is what most people want.
My whole is one of the united states.

What am I?

Question: Draw, fire, or fill me;
I'm still empty.

What am I?

Question: A smooth dance, a ball sport, a place to stay, an Asian country, and a girl's name.

What's her name?