a laboratory

research association; research society / group of enthusiasts (as may be found in schools, colleges, etc)

(education) research project, done by Japanese schoolchildren during summer break, to be presented upon return to school

research & development; R&D

researcher

a research student (i.e. a visiting or non-matriculating graduate student) / a researcher

remains, ashes / knack, trick

skeleton / bone

(archaic, rare) a bone, particularly a covering bone such as a skull or kneecap

everything