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This is a "black box" activity. Students use their sense of hearing, touch, and smell to figure out what objects are contained in their paper bag.
Mammoth Hot Springs, WY
Curriculum and Instruction | Geology | Science and Mathematics Education
Houseal, Ana K., "Student Experience 07: What's in the Bag?" (2012). Expedition: Yellowstone! STaRRS Curriculum Materials. 13.