proof*
Proof = prueba
the wool does not rust
Steel wool does not get softer under water. That is just your perception.
Cotton wool -- absorbent cotton -- absorbs water, and would not shrink.
Yes because the molecules of wool show hydrogen bonding with water molecules.
Wool is not soluble in water, but may dissolve in some acids.
Don't know about warter, but wool does absorb water.
Wool fibres attach to each other when wool is agitated in water. The fabric structure then, is very tight wool fibres.
"Hurt" here requires a context.When you wear your wool jumper in the rain, you can dry the jumper and have no trace of 'hurt'.If you agitate your wool jumper in hot water, it will shrink.
Steel wool will quickly start to rust when placed in water due to its iron content. The water exposes the iron to oxygen in the air, leading to oxidation which causes the steel wool to rust and eventually deteriorate.
no
Yes, not easily because of its lanolin content, but yes, wool absorbs water.