High density is a characteristic of a Gas. When something has a high density it means there is a lot of a certain gas, in one area.
Solids and liquids both have high density in comparison to gas, and they both have a definite volume.
The fact that it can be hammered into sheets would seem to be the most relevant characteristic in this case.
There were three basic states of matter: solid, liquid and gas. As we understood more about the nature of the world and how things in it worked, we saw that the three states of matter were basically a function of temperature. But at elevated temperatures, the term "gas" doesn't really apply. We had to think of something else, and plasma was the name we applied as a logical extension of the other three states of matter. We needed a fourth state of matter to describe things on the sun or in an electric arc. Atoms stripped of some or all of their electrons and existing without them owing to extrordinarily high temperatures (energies) are in a state called a plasma. Wikipedia has additional information on this state of matter, and a link is provided.
Gasses have an incredibly low density, less than a liquid or a solid.
This would make the experimental results for density erroneously higher.
There are 4 states of matter in the particle theory but only 3 are taught at keystage 3 and 4 in UK schools (high school level in the US).These three are Solid, Liquid and Gas.The fourth state of matter is plasma.
Low density: gases Medium density: liquids High density: solids
You are asking for comparatives. Each state can be any when compared to another state except the extremes. Liquid or gas either lower or higher depending on what you compare it to.
hot soup
This is a solid.
Yes, plasma is generally defined as the 4th state of matter, coming next to solid > liquid > gas > plasma. It is mostly used for properties of matter at extreme high temperature and high density. (nuclear and astro-physics)
Density
This is a liquid.
Many people know about the many states that all matter on earth can take. From solid to liquid and from gas to plasma, all of them have different properties which are what distinguishes one from the other. The gas state, for example is a state in which the matter has indefinite shape and volume, it also has a very low density and a high compressibility.
It's not necessary. If a compound has high optical density, it means that it absorbs more light at the given wavelength than some reference compound. There is no simple relation between density of matter and optical density. Even more I am pretty sure you can find a lot of compounds with lower densities (of matter) but having high optical density.
high density have more matter per unit of volume (a box with a lot of circles) low has fewer matter per unit volume (a box with less circles)
You can use a centrifuge machine which spins small test tubes at very high speeds causing the lower density matter to rise and the higher density matter to sink. This leaves you with a density gradient of the different types of matter in your mixture.
void is anti matter in high density mass which due to high gravitational force may cross the threshold of the speed 3 x 108 km/sec to form matter.