analyzing
boy
chemical
chemist
chemistry
dad
discovery
discussing
doctor
examining
experiment
experimenting
explaining
father
fluid
glass
glassware
help
helping
individual
kid
lab
laboratory
liquid
man
mentor
mentoring
personal
private
pupil
research
researcher
sample
schoolboy
science
scientific
scientist
solution
son
student
substance
taking
teacher
teaching
test
testing
tubing
tutor
tutoring
virus