Have a look on the cereal box, the weight is always shown.
a box of cereal is 450 g in weight
a box of cereal is 450 g in weight
a box of cereal is 450 g in weight
I look at the label. It tells you weight and average servings per box.
a box of cereal is 450 g in weight
a box of cereal is 450 g in weight
A cereal box has a real weight, not an average weight. The average weight of a set of cereal boxes would depend on the product, for example 500 gm boxes of Rice Krispies have a lower average empty weight than 700 gm boxes of the same product. So more information is needed.
It varies widely, depending on the size of the box and the size and shape of the cereal pieces.
Chalk it up to gravity. When the box is filled at the packaging plant, the correct weight is in the box, but over time (very little time, at that) the contents settle due to breakage, handling, shipping and shaking the box to get the nifty prize..
It depends on what box of cereal it is
A can of soup is mostly water, which is pretty dense. A box of cereal is mostly air (I'm thinking rice crispies or corn pops), which is far less dense than water. But what you should do to prove it is get a box of cereal and measure its dimensions. Multiply the dimensions -- length, width, and height -- to determine its volume. Divide the box's net weight by the volume to determine its weight density. Then get a box or can of College Inn chicken broth. (For some reason, College Inn chicken broth is packaged by net weight instead of by volume in fluid ounces.) Divide the net weight by the package's volume to determine its weight density. Then compare the two.
Cereal can be contaminated if dirty hands go into the cereal box. Another way to contaminate is by putting uneaten or unused cereal back into the box.