The density of cotton is 1.540 g/cm^3. This means that each cubic centimeter of cotton weighs 1.540 g.
The density of gold is 19.650 g/cm^3. This means that every cubic centimeter of gold weighs 19.650 g.
Conclusion: Gold is denser than cotton and a cubic centimeter of gold is 13 times heavier than the same volume of cotton.
note: links show physical property charts for gold and cotton.
Density can be described as the amount in mass of a substance that can occupy acertain volume. Which means that the more compact an object is the denser it is.
If you observe the structures of cotton and gold, you can see that cotton is loose while gold is compact. With this we can conclude that gold is denser than cotton.
We can conclude that the denser it is the more substance it contains on a specific volume. 1cm^3 of gold is heavier than 1cm^3 of cotton because there more gold that can be placed in a 1cm^3 comtainer than cotton.