A pen would weigh approximately 10 grams. 100 grams would be about 100 grams of feathers.
At the start of a soccer game, the soccer ball, a spherical leather football, is 27 to 28 inches (69-71 cm) in circumference and 14 to 16 ounces (396-454 grams) in mass.
about 5-10 grams
Mass is measured in grams, not weight.
piece of gum
paper clips do not weigh much, perhaps a gram each, so 10 weigh about 10 grams, so you would use grams, not kilograms, since 1 kg = 1000 grams
the prize varies depending upon the quality of the ball . you can get a soccer ball for as low as 10 $ while it can go upto 100 $
First tell us the size of the bolt- they all have different weights. There are some in my shop that weigh about 10 grams, some that weigh about 200. I work with some cranes that have bolts that weigh about 10,000 grams.