#1435704Students of School No. 2054 conduct an experiment in chemistry class.Sign in or register,to downloadAdd to cartRemove from cartPackage: Presentation of comprehensive school and new school equipmentCategories: EducationLocation: Moscow, RussiaEvent date: 04.04.2013Date published: 04.04.2013Author: Ilya PitalevCredit: SputnikSource: SputnikOriginal: DigitalMedia: JPEG, 2439x3274px, 3.3Mbtest tube