So many different things depending on the context of the science.
In Biology: Which kingdom an animal belongs to in order to qualitative its biological characteristics and/or behavior. For example: Mammals, amphibians, vertebrates, invertebrates, anthropods.
In Chemistry: To classify chemicals with similar characteristics, such as in the Periodic Table. Group I Alkalis, Group II, Alkaline Earth Metals, Transition Metals, VII Halogens, VIII Inert gases.
In Physics: Families of particles: leptons (electrons, quarks), mesons (pi), bosons.
So briefly, 'class' is putting a wide sample of something into smaller categories which share similar characteristics.
Function is a science class means work, or what it does.
The class of birds is ironically called Birds.
Class type or category for forms of entertainment. Ex-Horror Genre, Science Fiction genre, etc.
what does prism mean in science language
In science class we learn about elements.
its a science word
it means: "when he/she finishes the science class."
The science word "key" means important or critical.
science class
In science class we learned about subduction
i study about rocks and minerals in science class.
If you mean the part of speech, it is a noun. If you mean the etymology, it comes from Greek.