The Way Things Work: How Pins Float on Water
Run Time - 8 min. |
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Synopsis by Alice Day
Why do some objects float and others not? A straight pin seems so much heavier than paper, yet the paper will sink while the pin stays afloat. What is the mystery behind this? In The Way Things Work: How Pins Float on Water, Bob Symes offers an explanation, and students will understand quickly why the heavier object floats. Experiments that appear on the program can be replicated in the classroom, and Symes presents several in this episode. Surface tension is one of many science concepts covered in this series of short shows.