analyzing
biochemist
biochemistry
biology
board
chemical
chemist
chemistry
disappointed
discovery
discussing
doctor
examining
experiment
experimenting
explaining
frustrated
glass
healthcare
lab
laboratory
lecture
lecturer
male
man
pharmaceutical
pharmacology
pharmacy
research
researcher
sad
sample
science
scientific
scientist
solution
student
teacher
teaching
test
testing
tired
tube
tubing
unhappy
unsuccessful
upset
white
whiteboard
young