英文關鍵字
acid
background
bubbles
chemical
chemistry
color
concentration
condensate
condensation
glass
dissolution
dissolve
dissolving
education
element
equipment
exothermic
experiment
flask
gas
hydrogen
inorganic
isolated
laboratory
liquid
magnesium
measure
metal
particles
physical
process
reaction
reagent
research
science
scientific
solution
substance
sulfate
sulfuric
surface
technology
test
transparent
volume
water
white
wood
work
metallic
dilute
release
large
amount
heat
pieces
result
releases