英文關鍵字
additives
ammonium
atomic
atoms
carbon
cartoon
chemical
chemistry
chlorate
chloride
chlorine
coat
detergent
element
ether
experiment
food
formula
gas
hydrogen
hydroxide
impulse
isolated
lab
laboratory
laureth
lauryl
molecule
nerve
nutrition
oxygen
potential
reaction
research
salt
scientific
scientist
shaker
sodium
solution
substance
sulfate
symbol
test
tube
water