Subject: Does a uninflated balloon have more or less mass than a inflated balloon?

To help me explain more here's an example. Shelly has an uninflated balloon. She
fills the balloon with a gas and ties it closed. When she lets go, the balloon
floats up into the sky. Shelly wonders what happens to the mass of the
uninflated balloon compared to the inflated, floating balloon? I was wondering
what you thought. I am asking this just plain out of curiousity and to study for
a science test i have coming up this wednesday.

Re: Does a uninflated balloon have more or less mass than a inflated balloon?