Audience: Students; Grades: K-3; Subject Areas: Science. (2011) This program explores the interesting and fun process of weighing common objects. Concepts and terminology: matter, mass, weight, scale, and metric system. For the teacher's guide go to: https://drive.google.com/folderview?id=0B9ZT7PYcIjLfdktnalJvOFhOT1k&usp=sharing