ummm... light?
In chemistry, a compound molecule that is made of multiple elements is different from an element molecule. Other things that are not elements: Light, or any kind of electromagnetic radiation
Usually things such as cholesterol level, triglycerides, creatinine, uric acid and the likes.
These are the radioactive elements. See this link.
Chemistry I would think. Chemistry is the kind of science in which the reaction of two chemicals is observed.
research
dalton was into chemistry so he is a chemistry teacher
Libraries (and book stores) contain books and periodicals which can be used to do research. There is also such a thing as original research; you can find things out for yourself, in addition to finding out what other people have already found out and published. Exactly what kind of research you need to do will depend upon what kind of subject you are researching.
You don't say what kind of things but if they're light things like paper or hair, it would be static electricity.
kind of research a paralegal does for a lawyer
All light waves behave in two ways, simultaneously. Light of any kind acts as both a wave and a ray.
there is chemistry biology and physics
A pharmacist is a scientist that is heavily involved with chemistry. A materials scientist would also be involved with chemistry. Oil Refinery chemists and water scientists all use chemistry.