Sponsored by iStock
LIMITED DEAL: Save 20% on 4K Video from iStock
Suggested tags
laboratory
scientist
microbiology
stem - topic
chemist
biochemistry
biology
science
chemistry
professor
scientific experiment
expertise
university
hd
research
student
post-secondary education
education
classroom
intelligence
1080p
instructor
usa
studying
beautiful people
blackboard - visual aid
indoors