Steno's principles

I believe that 4 is the oldest because if turned horizontally, it would be below 5, 1 and 6. then 2 and 3 are intrusions and cut over 4. Then 5 because everything else is on top of 5 and 4 is below it. Then 2, because its an intrusion and goes over 5 and 4 but 6 and 1 are layered on top and then 3 cuts over 2. Then B because it makes a crack and separates parts of 2. Then A turned it sideways. Then comes 6 layering over 4, 5, and 2. Then 1 because its above 6. Then 3 cuts over all of them making 3 the youngest.
Oldest to youngest= 4, 5, 2, B, A, 6, 1, 3.

I believe that the reason scientists suspect that the Earth is older than 6000 years is because when they studied the rocks, maybe they thought that each layer of rock was a certain amount of years and there was probably more than 6000...so they were like "oh hey, that's more then we thought. maybe the Earth is older than 6000 years..." and yeah ^_^