You have what's known as an "open" differential - no limited slip. So it's normal for one wheel to turn. Because the differential gears are working full time doing that, it's also normal for strange noises. You won't learn anything doing it anyways.
Remove the driveshaft, articulate all the u-joints, or have some who knows do it, and check the steady bearing too. Then remove the axles, and like I said before in the previous thread, it will be ONE wheel bearing, not both.