Two children conducting a science experiment.
Schlüsselwörter
children,
children,
science,
experiment,
laboratory,
school,
education,
learning,
student,
pupil,
boy,
girl,
teenage,
teenage,
youth,
young,
people,
person,
human,
human,
test,
tube,
beaker,
flask,
chemical,
reaction,
fun,
curious,
curiosity,
discovery
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