Because lighter and heavier refer to an objects weight - which has nothing to do with density ! For example - a kilo of feathers is heavier than half a kilo of lead - but lead is more dense !
7.3 = 7.30 is bigger than 7.25
it is heavier
An object with a specific gravity (SG) of 7.5 which could be a mixture of something with a SG higher than 7.5 and something with a lower SG.
its because when you burn something, its also known as 'oxidizing' it, and this adds oxygen to the chemical, therefor sometimes giving it more weight!
Density is it's mass per unit of volume. The more "dense" something is, the heavier it is in every cubic metre (or other unit).
nucleosynthesis
YARP
The heavier something is, the harder it is to get it moving quickly.
Sand is much heavier than grit. Sand should be used if you're trying to weigh something down.
Denser means a comparison between two things and if something is heavier than the other Denser means a comparison between two things and if something is heavier than the other
By weighing the thing or multiplying the thing.
lift
If you had the same volume of each material, lead would be heavier (something on the order of eleven times heavier!) than the same volume of water. That's because lead is more dense than water.
No... The weight is constant, unless you cut off a piece or added something to the can...
A heavy element is an element that based on the amount of metal that is in the element. Some can base the description of a heavier metal on the number of atoms but it is the amount of metal in the element.
If you weigh a piece of steel, and then allow it to rust and weigh it again, it will be heavier by a small amount. The difference will be the weight of the oxygen atoms that have become bound to the iron molecules.
Um... thicker cardboard? This question is way too vague to answer.