analysis
beaker
biology
biotechnology
boy
chemical
chemist
chemistry
child
class
classroom
cognition
concentration
confidence
discovery
education
elementary
elementary school
experiment
happiness
horizontal
indoor
intelligence
kid
knowledge
lab
laboratory
learning
lesson
liquid
medicine
microscope
person
pupil
research
school
science
scientific
scientist
smart
stem
student
study
studying
teacher
technology
test
tube
定額
Teacher in support and watch student in laboratory they wear safety glasses, stand and experiment about science of chemistry in STEM class. Student funny do experiment with liquid in tube. Erudition.の素材 [FY310227097630]
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