Εστιασμένη κοπέλα που κάνει επιστημονική εργασία, προσθέτοντας υγρό σε πιπέτα με λευκή σκόνη αλατιού στον πάτο. Προσπαθώ να κινηθώ αργά και με ακρίβεια. Πίσω από ένα τραπέζι. Συγκεντρώσου στα χέρια της.. - Φωτογραφίες & Εικόνες Αρχείου

Blue liquid. Joyful sweet blond girl taking vial from stand while grinning and standing near microscope

Amazed girl in white coat and goggles looking at blurred test tube in lab

Teen girl student caring out experiments in chemistry class.high school students with microscopes in laboratory

Little experiment. Merry happy enthusiastic girl smiling while wearing lab coat and posing on the blurred background

Practical lesson. School-age girl in protective glasses adding liquid from pipette to test tube standing in classroom

Patient little girl doing home science project, mixing red and blue liquids in a flask. She has chemistry glassware and microscope

Blurred little girl doing home science project, filling a pipette with liquid from the flask. Behind a table.

Cute smiling little girl doing science project, holding a leaf in tweezers. She is wearing protective glasses, standing behind a table.

Amased little girls doing science project, one is adding liquid from pipette into a flask, provoking a chemical reaction, release of a gas with a lot of foaming. Both wearing protective glasses.

Immersed little kids doing home science project, filling glass dish. All behid table, wearing glasses. Chemical glassware and colored liquids on the table.

Curious little girl doing home science project, looking through magnifying glass. She has glass chemical equipment and microscope

Grimacing playful girl doing home science project, corking the flask with a liquid, putting an effort. She has glass chemical wares equipment and microscope

Focused little girl in white robe filling a pipette, next to her boy picks a dish with red chemical liquid. Doing a home science project behind the table.

Three focused little kids doing home science project, carefully filling a flask from the beaker. All behid table, wearing glasses. Chemical glassware and colored liquids on the table.