Cheat Engine

[Hannah.]

monsters besides 2 zombies and 3 creepers over 8 hours of gameplay. Anyway, here's a picture of sand unaffected by gravity.

Next to that, I have 6*9*64 pieces of sand collected legitly.

[[SPW]Killamoocow]

just don't touch the sand or else it'd probably fall and you'd suffocate and die.

[Monkeys]

If you don't touch the blocks next to a block of sand spawned by the map generator, it won't fall.
So caves can result in floating gravel and sand.

[Sephiron]

Yes.