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All-In-One Science Solution
Your Safer Source for Science
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Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
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Pink swirls appear as ammonia gas diffuses across a filter-paper membrane into phenolphthalein solution. Molecules in motion!

Concepts

  • Scientific Method
  • Diffusion
  • Gases
  • Liquids