7y
amazing
assiduity
attempt
baby
blond
boy
brush
carefully
chemistry
child
childhood
clean
dangerous
diligence
education
enthusiasm
experience
experiment
exploration
fire
gently
himself
home
home schooling
intently
investigation
kid
learning
liquid
makes
male
one
pipette
powder
practice
preschool
research
science
shirt
spatula
spirit lamp
study
substances
surprised
tube
zeal
定額
Experiments on chemistry at home. Closeup view boys hands heats the test tube with red liquid on burning alcohol lamp. The liquid boilsの素材 [FY310113571496]
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