The Energy 
CLEANet.org
The Climate Literacy and Energy Awareness Network (CLEAN) provides a collection of over 600 energy resources for classrooms from middle school through higher education. Search for activities that have been reviewed by teaching professionals.
DOE Energy Framework
The Energy Literacy: Essential Principles and Fundamental Concepts for Energy Education identifies seven principles that are viewed as essential to become an informed energy citizen. This document can be used as a starting point for lesson design.
BP Educational Service
BP Educational Service (BPES) provides free videos, animations, and activities for school through college-aged students on science, technology, engineering, and mathematics (STEM) concepts. The aim of BPES is to use classroom concepts as the basis for activities and learning opportunities in the real-world.