It might be best to hold all questions until you've actually seen the application template and begun to fill it out.
Each Experience slot has a series of fields. There is a pull-down menu to label the experience. Reserach is one label, others are "teaching/tutoring", "volunteer, clinical" "employment, military" (there are non-clincal and non-military versions of those latter two), and several others.
Next is a place to show the start and end dates (month and year) of the activity, and the number of hours per week devoted to the activity.
Then you list the title of the activity, a contact if you have one, the contact's title, contact's location, and maybe there is a place for contact's phone number or something like that (I'm doing this all from memory because I don't have any appies handly at the moment) Then there is a place for a brief paragraph about the activity. Obviously, some activities don't have a logical "contact" and that's understandable. In other cases, your principal investigator, supervisor, advisor, chaplain or other person who can vouch for you.