Relative Humidity in Micro-Environments

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Super Typhoon Angela satellite imagery from 1995

ERN Item Type: 

  • Classroom Activities


Innovative Technology in Science Inquiry (ITSI)


There is always some water vapor in the air. For the most part we can’t see it directly, but we can measure its presence with a relative humidity sensor. In this activity, you will use a relative humidity sensor and a soda bottle to measure humidity near surfaces, such as over a leaf or above an ice cube.

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