I don't know, I'm stuck with this question too...
The word you are looking for is "density". Density refers to how tightly packed the matter in a substance is.
It means that the molecules are packed together very tightly.
solid
Gas because it is loosely packed together and density means how tight is it packed
This is a simile - you can tell because it uses the word "like" to compare two things. Sardines are packed into a tin very tightly and close together, so this means crowded together.
Packing palisade cells tightly together means that the maximum amount of light can be intercepted. If there are big gaps between the cells then more of the light hitting the leaf will just pass straight through. Tightly packed palisade cells is one way in which leaves are adapted for photosynthesis.
"Packed closely together" means that objects are arranged in a tight and compact manner, with little to no space between them. This term is often used to describe how things are tightly grouped together in a specific area.
A state of matter with a definite shape means that its particles are tightly packed together and organized in a specific arrangement. This allows the substance to maintain a distinct and fixed shape under normal conditions, regardless of its volume. Solids are an example of a state of matter with a definite shape.
Water is heavy because it has a high density, which means there is a lot of mass packed into a small volume. This density is due to the water molecules being tightly packed together, making it heavier compared to other substances.
Packing palisade cells tightly together means that the maximum amount of light can be intercepted. If there are big gaps between the cells then more of the light hitting the leaf will just pass straight through.
I think it's polymer... Because "poly" means many and "mer" means units. Yeah, I'm pretty sure it's polymer.
Densely is a term for over populated areas. For example mumbai.