How many tons r in a yard or vice versa

a cubic yard is reference to area, Tons is a reference to weight. Two different methods of measurement. Question should be How much does a yard of whatever weight? A ton = 2 thousand pounds

Which weighs more... a pound of feathers or a pound of sand?

This will vary. A cubic yard is 3' x 3' x 3'. Gravel will weigh approx. 1.4 ton per cubic yard. So what are you material are you considering? Stone? Gravel? Dirt? So you really need to go and ask a supplier in your area. Hopefully you will have a more succint question for that person than you posted here. From what you asked, no one can give you the exact, precise answer.

http://www.infoplease.com/ipa/A0001661.html
https://www.askmehelpdesk.com/other-home-garden/how-many-tons-pea-gravel-31868.html
Online Conversion - square yards to tons (http://www.onlineconversion.com/forum/forum_1113527984.htm)

How much does 5 yards of stone weight