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Activity: Build a Drifter

Activity: Build a Drifter

Drifters are used to measure current speed below the surface of the water. Speed can be calculated by measuring the time it takes a drifter to travel a known distance. Build a drifter to measure water flow at a beach, river, lake, or manmade channel.

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Exploring Our Fluid Earth, a product of the Curriculum Research & Development Group (CRDG), College of Education. University of Hawaii, 2011. This document may be freely reproduced and distributed for non-profit educational purposes.