study liquid states group school pupils chemical liquids girls and boy student conduct experiment with |
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| navigate by keyword : experiment substances liquids kids check result student girls boy conduct teamwork concept test tubes colorful liquid study states group school pupils chemical adorable chalkboard childhood education formal knowledge child learning little pupil schoolgirl smart students subject uniform caucasian children intelligent intellectual task successful |
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| Study of liquid states. Group school pupils study chemical liquids. Girls and boy student conduct experiment with liquids. Check result. Teamwork concept. Test tubes with colorful liquid substances. |
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