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(2 Results)

AP8715 - $24.70
Amazing! Beautiful popcorn-like crystals actually growing out of a rock. How is this possible? In this demonstration, the teacher performs tests on a limestone rock to determine some of its chemical and physical properties. The rock is then placed...
AP6612 - $38.95
Amazing! When a limestone rock is placed in a solution of acetic acid, beautiful popcorn-like crystals actually grow out of the rock. In this activity, students place a limestone rock in a weighing dish with acetic acid and allow the contents to sit...
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