analysis
analyzing
boy
chemical
chemist
chemistry
child
discovery
education
experiment
friend
fun
girl
glass
happy
hold
home
kid
lab
laugh
learn
liquid
little
looking
observe
people
person
project
research
researching
schoolboy
schoolgirl
science
scientific
scientist
smile
soda
student
surprised
table
team
teamwork
test
vinegar
volcano
young