The density of a material is defined as its mass per unit volume. A given volume of lead has more mass than a given volume of feathers. In common usage mass often refers to weight, but that is not a very exact usage of it. For this question it may be useful however to think of a given weight of lead per volume and a given weight of feathers.
If you have a kg of lead, that is a small piece, a kg of feathers is a large amount.
So for a given volume, say a cubic centimeter, the weight of lead is much more than the weight of feathers.
They both weight a kilogram. Lead has a higher density.
Lead
lead has much higher density
Because pounds measure weight. A pound of feathers would be a whole lot bigger than a pound of lead.
Lead is more dense than feathers. It doesn't matter how much you have of either one. A chip of lead is more dense than a 10-mile convoy of trucks loaded with feathers.
Because of its' mass density. The lead would be much smaller in size.
A kilogram is a measure of mass therefore a kilogram of lead and a kilogram of feathers have the same mass: one kilogram. They would, however, have different volumes and densities.
They both weight a kilogram. Lead has a higher density.
No, both weigh a kilogram
Lead
A kilogram of butter as it is less dense than lead.
Yes
lead has much higher density
Wter has a higher density.
They both weigh the same: 1kg = 1kg. The kg of butter has a greater volume and the kg of lead has a higher density.
They all would weigh the same amount, 1 Kilogram.
Because pounds measure weight. A pound of feathers would be a whole lot bigger than a pound of lead.