balloon launch http://peoriapublicradio.org en Area students launch weather balloon http://peoriapublicradio.org/post/area-students-launch-weather-balloon <p></p><div>Nearly 300 area middle school students gathered at the Caterpillar Learning Center in Edwards to assemble and launch a weather balloon. &nbsp;The project was led by Riverview Grade School science teacher Emily Dawson. &nbsp;Dawson says the weather balloon inflates to more than five feet across with sensors to measure pressure, humidity and temperature before it lands:</div><p> Wed, 22 May 2013 19:30:05 +0000 Alex Rusciano 6032 at http://peoriapublicradio.org Area students launch weather balloon