Actually, neither, but its weight is much closer to a gram than a kilogram. Remember, a kilo is the weight of one litre of water, and a penny is much, much lighter.
Actual weights:
US "penny" (really a cent) : 2.5 gm.
Canadian "penny" (again, a cent) : 2.35 gm
British penny : 3.56 gm
closer to gram
lots of kilograms
A dime only weighs on gram roughly. A nickel weighs 4.5 grams. 1 kilogram (1kg) is 1000 g (grams). A paper clip weighs one gram also.
Kilogram.
Oh, dude, a gram weighs 1 gram! Like, that's literally the definition of a gram, it's a unit of mass in the metric system equal to one thousandth of a kilogram. So, if you ever need to weigh out a gram of something, just remember it's gonna be, you know, a gram.
gram
one gram roughly
It would be more appropriate to weigh a pumpkin with a kilogram, as pumpkins generally weigh more than a gram.
A gram, as there are 1000 grams in a kilogram. A penny only weighs a few grams anyway.
one gram roughly
Kilogram
closer to gram
A pair of scissors would typically weigh closer to a gram than a kilogram. The weight of a pair of scissors can vary based on the material and size, but they are usually quite lightweight.
a kilogram I would start by using a scale, but I agree, Kilograms would be the most efficient of the two units of measure.
weigh the penny on a scale to the nearest gram
A gram is one-thousandth of a kilogram, so 1 gram weighs 0.001 kilograms.
A paper clip typically weighs about 1 gram, not 1 kilogram.