acetate
acetic
acid
air
background
baking soda
balloon
beaker
biology
blow
blowing
bottle
chemical
chemical reaction
chemistry
class
complete
concept
demonstrate
dioxide
education
equipment
experiment
gas
glass
inflate
inflates
inflating
lab
laboratory
last step
liquid
object
oxygen
process
reaction
research
science
scientific
scientist
solution
stem education
study
substance
teaching
test
tool
tube
tubes
vinegar
定額
Science experiment , Hand holds transparent bottle with inflated blue balloon on top of bottle. The experiment about air or gas reaction.by using chemical substance.の素材 [FY310196963440]
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