Mg or g
You weigh it on a very accurate low-range scale.
This would be the same as finding the volume of a paper clip, See the related question below.
You would determine its mass using a mass balance.
grams definitely...a pencil weighs more than a paper clip and a paper clip weighs about a gram.
if you place a paper clip on your paper airplane, you may find it improves performance by equalizing the load (weight) and lift (what the wings generate)
You could find heavy weight paper in Hobby Lobby.If not,you could also find heavy weight paper in staples.
The easiest way to find the volume of irregular objects is to use water displacement Fill a beaker or other container with water and place the paper clip in the water. The amount the water level rises is the volume of the paper clip. Of course because a paper clip is so small you would either need to use highly accurate measuring devices or place enough paperclips in the water that there is a noticeable change in water level. you would then divide the change in water level by the number of paperclips you put in to get the average volume of a single paper clip.
There are a few places that an antique paper weight can be purchased online. The most likely place to find an antique paper weight would be from eBay depending on the day.
To calculate the energy of a paper clip using E=mc², you would need to know the mass of the paper clip in kilograms. Once you have the mass in kilograms, you can multiply it by the speed of light squared (3.00 x 10^8 m/s) to find the energy in joules.
You can use grams. To find out use a triple beam balance.
The average length of the paper clip is approx 3.4925 cm, so in order to find the length of the chain, multiply 1 Million by the size so it would be, 1000000* 3.4925=3490000 (3490000 is in centimeters or it would be 34900 meters)
The mass of a paper clip is simply measured in grams.