Test tubes, graduated cylinders, coins, keys, chalk, etc. are examples or objects that may be used as samples to be weighed.
(Test tubes, graduated cylinders, coins, keys, chalk, etc.; are; examples or objects that may be used as samples) (examples or objects; may be used; as samples) (samples; to be weighed; )
Test tubes, graduated cylinders, coins, keys, chalk, etc. examples or objects samples
are may be used to be weighed
examples or objects that may be used as samples
as samples