Lab-Aids: Kitchen Chemistry Kit This fun activity emphasizes experimental observation and scientific reasoning skills. The primary purpose of this Lab-Aid is not to identify the common kitchen chemicals, but to observe how they react. Students first explore some physical and chemical properties of several common kitchen substances (four powders). Then, they determine some properties of the powders by using three liquid indicators. After determining the physical and chemical properties, students attempt to identify some of the mystery powders provided using the results from their experimental observation. The solutions and powders necessary to complete the activities are included in this kit. This kit is complete for 50 students. Scientific Concepts: Emphasize experimental design and observation Develop scientific reasoning skills Content List: 1 Teacher's Guide with MSDS 50 Student Worksheets and Guides 12 Chemplates‚® w/spatula 2 Droppers 1 Bottle of Powder I 1 Bottle of Powder II 1 Bottle of Powder III 1 Bottle of Powder IV 2 Bottles of Indicator B 1 Vial ofUnknown 1 1 Vial ofUnknown 2 1 Vial ofUnknown 3 1 Vial ofUnknown 4 2 Drop control bottles of Indicator A 2 Drop control bottles of Indicator C Classroom Planning: To complete this kit requires one ~50-minute class periods Number of students: 50
