Free! COOL CHEMISTS: The next time a student tries the "dog ate my homework" excuse, use it as a teachable moment! Thanks to the folks from the American Chemical Society, you can now explain what happens when a dog eats homework, and in not so flattering terms, why they should be able to recover it. The ChemMatters publications are a drop in the bucket however, compared to Middle School Chemistry. The ACS-powered web site offers inquiry-based lesson plans for grades 6-8 Chemistry. Each lesson plans is accompanied by flash-based multimedia to help illustrate the concepts within. If authorship by the ACS isn't enough to satisfy the assessment trolls, educators can also search by state and grade level to see which state and national science standards align to a particular lesson.