academic
attentively
back to school
black
boy
caucasian
chemistry
child
childhood
class
classmates
classroom
concentrated
concentrating
cute
desk
development
early learning
education
elementary
elementary school
female
focused
girl
holding
indoors
knowledge
learn
learning
lesson
looking
male
microscope
mixedrace
pupil
school
schoolchild
science
serious
studying
test tube
thoughtful