Etäopetus, koulu ja tiede konsepti onnellinen mies kemian opettaja suojalasit ja kuulokkeet kannettavan ottaa online-luokan ja kaatamalla kemikaalia koeputkesta pulloon kotona toimistossa - Kuvapankin valokuva ja kuva

Distance education, school and science concept - happy smiling male chemistry teacher in goggles with laptop computer having online class and pouring chemical from test tube to flask at home office

Distance education, school and science concept - happy smiling male chemistry teacher in goggles with laptop computer having online class and pouring chemical from test tube to flask at home office

Distance education, school and science concept - happy smiling male chemistry teacher with laptop computer and goggles having online class at home office

Distance education, school and science concept - male chemistry teacher in goggles with laptop computer having online class and showing test tube with chemical at home office

Distance education, school and science concept - smiling male chemistry teacher in goggles and earphones with laptop computer having online class and showing test tube with chemical at home office

Distance education, school and science concept - happy smiling male chemistry teacher in goggles and earphones with laptop computer and test tube with chemical having online class at home office

Distance education, school and science concept - happy smiling male chemistry teacher in goggles with laptop computer having online class and pouring chemical from test tube to flask at home office

Distance education, school and science concept - happy smiling male chemistry teacher with laptop computer and goggles having online class at home office

Science research, work and people concept - male scientist with microscope working in laboratory

Education, science and children concept - girl in goggles with magnifier studying test tube with chemical at home laboratory

Education, science and children concept - girl in goggles with test tube studying chemistry at home laboratory

Education, science and children concept - girl in goggles with test tube studying chemistry at home laboratory

Education, science and children concept - girl in goggles with test tube studying chemistry at home laboratory

Education, science and children concept - boys in goggles with test tube studying chemistry at school laboratory

Science, chemistry, technology, biology and people concept - young scientists with pipette and flask making test or research in clinical laboratory

Science research, work and people concept - male scientist with microscope working in laboratory