group caucasian school children chemical lab pupils put dry ice into the flasks with colorful liquids which |
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| navigate by keyword : adult asia asian bowl boy boys chemical chemistry class classroom cold colorful cute dry education evaporation excited experiment face float fun girl girls goggles ice indoors kids korean lab laboratory learning liquid people physics portrait reaction school science scientific smoke students study table teacher team test tube water |
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| Group of caucasian school children in chemical lab. Pupils put dry ice into the flasks with colorful liquids which causes intensive vaporization. Science and education. |
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