Braintwisters 4

[Matusalem]

Fellow Macondians:   If I were in Hawaii and dropped a bowling ball in a bucket of water which is 45 degrees F, and dropped another ball of the same weight, mass,and size in a bucket at 30 degrees F, both of them at the same time, which ball would hit the bottom of the bucket first?  Same question, but the location is in Canada?   Matusalem.