英文關鍵字
acid
background
beaker
black
blue
boil
carbon
chemical
chemist
chemistry
co2
color
cylinder
danger
dioxide
engineering
eruption
evaporate
examination
experiment
flask
fluid
gas
glass
graduated
holding
isolated
lab
laboratory
liquid
measure
medical
multicolored
poison
process
reaction
sample
science
shoot
steam
studio
synthesis
syrup
technology
temperature
test
tube
vertical