The purpose of this K-6 curriculum is to provide teachers and other educators with classroom lessons and home surveys that are a starting point for understanding four significant environmental issues--water, toxics, energy, and solid waste/recycling. While each of these environmental issues is complex and has far-reaching implications, the lessons and home surveys can serve as a way for teachers, students and families to begin thinking about these issues in relationship to their own lives. In this unit, students are introduced to each of the four issues in class and then take home a survey which they complete, if possible, with other family members. Each issue area involves two 45-minute lessons and a take-home survey. Students return to school with their completed surveys and discuss the results. In addition, a follow-up lesson for each issue is provided as a way for the teacher and students to take positive action in their own lives. This document contains the lesson plans, surveys, activity guide for making a poster, a resources guide, and a list of ideas for school projects. (CW)