What is the weight of a pice of paper?
Approximately 5 grams. Most 'standard' A4 paper is 80gsm - which means 80 grams per square metre, There are approximately 16 A4 sheets to a square metre.... 80 divided by 16 equals five.
Take 1 botttle of coke and 1 bottle of sprite of the same size (20 oz) weight them both, then, leave them open so the gas goes out; put the cap back shake a little, leave them open again, after 20 minutes weight them again, repeat the same procedure wait for 40 minutes and weight them again. Have a pice of paper and pen to write down the information.
The weight listing on paper refers to the thickness and stiffness of the paper or some would say the density by area. So, the higher the weight listing of the paper the thicker, stiffer and more opaque the paper will be. It should be noted that this will vary some by types of paper as 20 pound bond paper is not as thick or stiff as 20 pound cover paper.