Si au début vous ne réussissez pas, essayez une autre expérience. Petits écoliers tenant des éprouvettes pour des expériences en laboratoire. Des petites filles qui font des expériences en classe. Démonstration et expérimentation . - Photo & image de stock

At chemistry lesson. Little school children holding test tubes at lesson. Small schoolgirls learning lesson at school. Having school lesson in science classroom.

At chemistry school. School children performing experiment in science classroom. Schoolgirls holding test tubes. Science laboratory for school and education. Laboratory in elementary school.

Chemistry is about reaction. Smart school children performing chemistry test in lab. Small schoolgirls learning chemistry during school time. Little pupils holding test tubes in chemistry laboratory.

At chemistry lesson. Little school children holding test tubes at lesson. Small schoolgirls learning lesson at school. Having school lesson in science classroom.

Test tubes with colorful substances. Chemical analysis and observing reaction. School equipment for laboratory. Girls on school chemistry lesson. School laboratory partners. Kids busy with experiment.

At chemistry school. School children performing experiment in science classroom. Schoolgirls holding test tubes. Science laboratory for school and education. Laboratory in elementary school.