I had this for a sciencebadge once.... I think it is the stuff that is floating ontop of the water. Although i wouldn't rely on that for a final answer. Hope that helps! :)
they are fast
Toothpastes contain also a small amount of tiny abrasive particles.
An abrasive cleaner is one that might scratch a surface being cleaned. Steel wool is an abrasive cleaner. Comet is also an abrasive cleaner because it contains a gritty formula for cleaning.
Yes, dissolving denture cleaner is physical. ('dencher' is not a good word)
It acts as an abrasive.
ONLY if the oven cleaner is of the non-abrasive type !
Yes, with a no-abrasive (non-scratching) cleaner.
No, but I can give you an interesting one. Throughout his life he was known for his abrasive manner. Try our new all-purpose, non-abrasive cleaner. He used sandpaper or some other abrasive to remove the paint.
Yes.
vinegar
Using a non-abrasive cloth, clean with any standard surface cleaner and wipe dry. Put a small amount of baby or household oil onto another non-abrasive cloth and polish the stainless steel; it will remove and streaks and provide a protective layer against fingerprints.
pretty much any household cleaner