Teachers, whose ideas are selected by iScienceProject.com, will be loaned a classroom set of HOBO data logger equipment for up to two months to run their experiments. A HOBO data logger is a matchbox sized, battery-operated device that can measure air temperature (Fahrenheit and Celsius), water temperature, matter (solid, liquid, and gas) temperature, relative humidity, dew point, light, vibration, contact closure (open/closed), motor (on/off), AC sensors, and more. Once teachers return the sets and their experiment results, teachers are eligible to win HOBO gift certificates ranging from $40 to $300.

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