No. None of them are rubber.
i think it"s cotton balls because it is very absorbent
yes, cotton ball will absorb more than sponge
yes. wool is from goats but cotton balls are made from cotton.
Cotton balls are absorbent and can be used as a makeshift filter in certain experiments when a rubber stopper is not available. However, rubber stoppers are a better choice for sealing glassware due to their durability and ability to create a tight seal, preventing leaks or contamination in the experiment.
Rub my metal balls or rubber balls.
Because rubber is bouncy!!!! and bouncy balls are made out of rubber.
Cotton balls are not meant to be eaten.
The type of rubber used to make balls is called polybutadiene rubber.
yes you can,5 cotton balls for a regular zippo lighter and 4 for a slim zippo lighter
Cotton, They're soft than wool (i guess) but i choose cotton
Possibly, but likely not very well. There's a similar question about sponges, which would probably work better. The problem with cotton balls is that they have little coherence; the much denser egg will likely just shove them out of the way on impact and slip between them, so unless it's an extremely thick layer they're probably not going to help much. Cotton batting could work, but cotton balls (not stuck together in some way) are not going to do a great job of protecting the egg.
The centers of tennis balls are rubber and rubber hardens with age.