Article Last Updated: Tuesday, February 04, 2014 4:26pm
Marshal Lerette works with first-graders Cutter Bell, Tori McKinley and Savannah Stiegelmeyer. The group was classifying earth materials and making observations about minerals and types of rocks in Cathrine Prenot-Fox's integrated science class.
NASA is finishing a three-week expedition in Silverton and Grand Mesa to develop techniques of measuring snow.
See full gallery
Photos by Sam Green