Paper cups float because they are less dense than the water. Paper cups are made up of a light material, therefore making it float easily on the water's surface.
paper cups are 900 dollars
Because a paper boat does not have balance to float
A dry paper bag will float until it becomes saturated
float
The paper boat with the largest volume will float the longest basically the largest paper boat will float the longest.
a line paper
NO paper cups don't expire!!!! because they are plastic!!!
yes
Yes it does
You can use those paper cups just as you would the aluminum ones. I actually prefer the paper cups to the aluminum cups.
170 to 230 gsm paper used for paper plates and cups
These cups tend to be made from paper, sometimes from recycled paper. Paper is not manufactured to hold liquid so the cups are lined with wax to prevent breakdown of the material.