Kimyasal duman. Beyaz önlük giyen ve çocuklar için bir isteğe bağlı kimya ders yaparken kimyasal bir şişesi tutan güzel zeki sakallı bilim adamı - Stok Fotoğraf ve Görsel

Funny moment. Delighted boy keeping smile on face and bowing head while feeling confused during presentation of new experiment

Chemistry lesson. Smart professional male teacher wearing a white coat and holding a chemical flask while showing a chemical reaction to his students

Chemistry lesson. Smart professional male teacher wearing a white coat and holding a chemical flask while showing a chemical reaction to his students

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

Pop-eyed funny boy after chemical experiment in chemistry lab with fume

Curious boy watches chemical reaction of reagent, close-up

Surprised. Handsome perplexed fair-haired young blogger wearing uniform and holding test tubes and making new video

Man excitingly looking. Beaming young man excitingly looking on fire on his hand and showing thumb in camera

My own experiment. Handsome exhilarated fair-haired teenager wearing a uniform and glasses and holding test tubes while doing an experiment

Important project. Busy diligent student feeling responsible while getting ready for important project

Fire in laboratory. Emotional blonde-haired student wearing white coat making experiment with fire in laboratory

Teacher blending reagents. Unconfident handsome teacher blending reagents in glass tubes for chemistry experiment

Chemical reaction. Joyful exited smart boy holding flasks and mixing chemical liquids while enjoying his time in the lab

I am surprised. Attractive surprised popular young blogger teenager wearing a uniform and doing experiment with fire while making an experiment