Στη μέση του πειράματος. Ωραία μελαχρινή θετική αγόρι κρατάει μια χημική φιάλη και βήχα ενώ διεξάγουν ένα πείραμα με τον φίλο του - Φωτογραφίες & Εικόνες Αρχείου

Future scientists. Happy boys standing in the laboratory and holding a fuming vacuum flask while working on a school project during a chemistry lesson.

In the middle of experiment. Nice brunette positive boy holding a chemical flask and coughing while carrying out an experiment with his friend

Close your nose. Handsome boy standing in semi position and keeping smile on his face while trying to touch glass bottle

Feeling happiness. Attractive teenager with curly hair keeping smile on his face and looking downwards while holding smoking flask

Having fun. Delighted curious positive children standing around the table and mixing chemical reagents while conducting an experiment

Let us mix it all together. Funny little scientists cannot keep their emotions inside while conducting an experiment with multi colored liquids in the chemistry laboratory.

Successful experiment. Exited smart positive girl looking at the chemical fume and smiling while seeing a chemical reaction

Constant supervision. Beautiful intelligent nice teacher looking at her students and taking notes while having a chemistry lesson

Fascinated by the experiment. Delighted positive cute girls smiling and being surrounded by chemical smile while watching the chemical experiment

Good day. Positive delighted girl closing her eyes and keeping smile on her face while raising left hand

Fascinated by the experiment. Delighted positive cute girls smiling and being surrounded by chemical smile while watching the chemical experiment

Pleasurable entertainment. Cheerful curious smart girls holding a chemical flask and looking at it while conducting a research

Touch it, touch it. Group of little scientists having a good time and enjoying a chemistry lesson with their female teacher entertaining them during the practical session.

Chemical reaction. Selective focus of a chemical flask filled with liquid and being held by a professional mala scientist while conducting the experiment

Let me help you. Nice friendly female teacher standing behind the girl and smiling while helping her with chemical liquids

So funny. Positive nice girl looking at her sister while playing with her in the kitchen