a science teacher with student

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Photo credit: © Phovoir / Alamy / Afripics
License: Royalty Free
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Keywords: chemicals, chemistry, class-mates, classroom, cognition, concentrating, curriculum, desk, discovery, education, educator, exam, experiment, explaining, focusing, girl, high-school, knowledge, labcoat, laboratory, learning, liquids, mixture, notes, professor, project, pupil, rack, research, results, schoolboy, science, student, teacher, test-tube, tuition, tutor, undergraduate, writing