Are bricks easier or harder to break than concrete pavers, all things being equal? I'm staring at a stack of bricks that fell from my chimney. I teach middle school science and am contemplating breaking them during class to demonstrate strength of materials, forces, fulcrums, etc. I'm going to practice a bit so I don't make an *** out of myself, or at least look less stupid. But I think if I successfully broke a brick in front of them with a knife hand strike, they'd probably remember that. Edit: They've been inside for several months, so moisture shouldn't be an issue. The ones I'll potentially break don't have mortar or anything else on them either, just plain orange bricks. Not the rough kind.