If the air or gas inside a balloon is lighter than the air around it, what will happen to the balloon? It will sink It will float It will burst It will zip around the room.

## Step 1:<br />Firstly, we need to understand the principle of buoyancy, which states that an object will float if it is less dense than the fluid it is submerged in. In this case, the fluid is the air around the balloon.<br /><br />## Step 2:<br />If the gas inside the balloon is lighter than the air around it, it means that the gas inside the balloon is less dense than the air. <br /><br />## Step 3:<br />According to the principle of buoyancy, the balloon will float because it is less dense than the surrounding air.